Modwright KWI200 vs Kinki Studio EX-M1+

I am a big fan of Dan's gear and in the past have owned several pieces but in this case I would chose the EX-M1+.  I have owned one for almost a year and think it is a great amp.  Owned an earlier EX-M1 also.

I have a Modright 100SE that I am very happy with. You might want to check the gain spec to make sure it's not too high and will be a good match for your pre.It's difficult to set the volume correctly if your pre is also high gain.

The KWI200 is an integrated amp so preamp shouldn't be a concern

Kudos on your speakers selection! It seems you have discovered the Variety Prinicple in seeking joy in audio through a variety of expressions. Deciding to diversify in expression of technology was a key factor in finding a greater level of satisfaction as an audiophile.

I do not know if you saw my review of the EX-M1+ at Dagogo.com, but rolling in discrete opamps is a bonus. I will be exploring a new brand of them and will at some point have an update/addendum in regards to opamps. Opamps are cheap relatively, and you can buy a set of them from $100-200 ish. If you are hyper excited by novelty and new rigs, rolling in several different sets of opamps would be like an audio drug; it is exhilarating! There would be a LOT of iterations available to you, especially with those speakers to rotate. I would find that to be a big draw in terms of my thirst to explore new rigs. Most do not have the zeal to continuously build new rigs, but if you do, that would be a variable to provide a lot of fun, and at not too much cost for a few sets. See my other articles on opamp rolling at Dagogo.com.

If you go with the EX-M1+ (I cannot give guidance in comparison to the Modwright, because I have not heard/compared it), then certainly consider upgrading the opamps. There is plenty of discussion about it on the Net, too.