Your main DPS stats are all looking pretty good, so basically from here on you're going to want to work on improving your dex and your bow damage. I would definitely suggest getting a better bow. Either get a high damage 1 soc (which is what I did until I got my 1200+ DPS 2 soc) or get a higher damage 2 soc. Even another 100 damage out of it will really boost your DPS. Your eHP is looking pretty good, so that's not a huge source of concern. If you were to get inna's belt, you could trade out your inna's chest for nats and your nats sight for a mempo. That should net you a pretty decent DPS and eHP boost without costing a fortune.
The most obvious spot to me are your bracers. I would suggest you get some rare ones with dex, vit, AR and 5-6 CC on it. That should boost your eHP and DPS. You should also get a mempo that has vit on it to further boost your eHP. Other than that, I don't know what to suggest that isn't ridiculously expensive.
Looks pretty good to me! Before you hit inferno, it's pretty hard to mess up gearing honestly. With that in mind, how would you like the gear I'm wearing? I'm trying to give it away to someone new but nobody seems interested! This gear won't be much use to you now, but when you hit 60 it should let you get through inferno pretty easily.
Ahhh ok. Haven't seen that other ring, so it hasn't been in any of my simulations. Diabloprogress only shows unbuffed DPS, so your archery bonus won't apply. If when you say unbuffed you actually mean with archery, 200k DPS might be achievable without going crazy on gear. It's possibly to do without losing all that eHP, but that makes it expensive. You'd probably have to resort to an extremely good WH, a crit mempo and try to squeeze as much dex out of everything as possible. Since you also value aesthetics, this becomes even harder since you'd probably rule out a mempo which is something that's hard to beat. It would really offset the eHP loss of inna's.
I'm going to sound like a bit of a hypocrite here since I liquidated my gear in order to boost my eHP from 550k, but the truth is that I had enough to do MP10 with relative ease if I wanted to. So even if you lose 100k eHP, you'll still have about as much as I had which isn't bad at all. If you really really want to get higher DPS, I can't think of any other way than inna's 2 piece to boost you. If you're not too concerned, you could stick with what you've currently got and make minor improvements. Unfortunately, your belt and pants slot will eventually end up being either inna's 2 piece, inna's pants and a WH, or a WH and really good rare pants. That's basically how it always ends up since there are only so many ways to boost DPS without using those slots to their maximum potential.
IK is certainly a unique approach to eHP. I'm not really seeing any places where you could gain much DPS unless you went to an expensive 2 soc manti or got rid of IK.
I'm not expert on reading people, but I feel there is conflict here. If he gives you his stuff, I dibs everything that's worth something though.
Your eHP is quite low, so definitely work on that. A major reason for this is because you have like no vit. Try to double that if not more. This means getting vit on your mempo, your bracers, your gloves, etc. If you do that, you should be able to handle higher MP much more easily.
I'd suggest you go for nats 2 piece. You can get the chest super cheap and the boots are ~1m for a starter pair. You basically want this purely for the set bonus. You're definitely on the right track though! I would suggest you avoid using the jeweller. It costs more to make gems than it does to buy them. Try getting a little bit more vit where you can too. You also definitely want to get a better DML. I would go for at least 16% AS and suggest you get HA or bola on your quiver. I feel that the damage bonus is best tailored to deal with the bottleneck of any run. That bottleneck is elite, meaning you want your single target skill to be as powerful as possible. You generally shouldn't have a problem with white trash, so the EA bonus isn't required. That should boost your paper DPS and your effective DPS against the biggest time wasters.