It seems like you have a good stock of advice. And you seem like your really trying to figure out what is the workflow and gear best for it. Limitations are frustrating and everywhere. No one can ever really guide you on your workflow. They can share their’s and their perspective as well as you’ve tried to give us a glimpse of yours and compare in a sense but not really give you an answer that will only really come with experience.
I have been in GAS up until a few months ago regularly. I don’t perform but hope to. I started on a basic sampler, then the DT and now the OT. I can’t say it’s what you should get, with your sequencing, maybe not likely.
But I will say this. I think you have an idea of what you want but not one thing sticks out enough to give you it all. I had to really debate myself between the DT and getting the OT. Just on the level of investment I knew I would have to commit myself to learning it.
So I can’t tell you what is right for you, maybe you are trying to do to much at once, maybe you need a break and then re-evalute what you think your ideal approach would be if you can imagine it.
I used to imagine grooveboxes that would be a cross between a recording/dj’ing/remixing hub and then I discovered the OT and though even 2yrs in I’m still piecing workflows together slowly I am certain inspite of what it can’t do, it does more than enough of what I ‘need’ it to do and I am fine with where it lacks, but I’m not someone trying to run a whole slew of gear at once with it and have it doing a bunch of other stuff all at once.
And if your wanting to do more live, I’ve heard it enough, strip your set up down, you aren’t playing in a band and people don’t need to see you tweaking half a dozen pieces of kit that will just ad up to issues in the moment. Use as little as possible, playback pre-recorded tracks, don’t throw yourself down that logistical hole for some small appearance.
I thought I may have seen this guy on here a little while back but before you really consider moving to something other than the MD, maybe you just need a fresh perspective. And this guy does live sets with the MD. https://youtu.be/WV65dIXMMXs
Hope that helps.