After think in your post, I assume your style of hotkeys CTRL + 1 + J , CTRL + 2 + J is for enable the ability of remember large number of hotkeys, in order you can access to they in a way is easy to remember, CTRL +1 + X , CTRL + 2 + X in that way you can order your hotkeys with some logic, CTRL +1 + key to 2 , 3, 4 , 5 etc
That is right?
I can increase the number of MIDI, but there is a point where the amount of hotkeys make the task of switch from one hotkey to another a tedious task. From my point of view and as suggestion,................ you never take in consideration use a touch screen?
Your license include access to Chameleon multi-touch MIDI controller. A combination of the dial with elephant + touch screen with chameleon I think can be a more practical. You leave the most common used features to the dial, other to the touchscreen. The mouse frequently used features can be easy accessed trough a mouse like this: There is some mouse more cheap and provide same functionality. Or can use a hotkey form keyboard.
Touch a touch screen all the others you want, of course this require an invest as minimum on a touch screen i suggest DELL P2418HT:
This touch monitor is around 350U$..............yes I know have to invest on this. But I think you can build a great workstation combining technologies. About that plugin will be great i the creator add support to encoder mode, in order to borken the limit of 0 to 127 values, With pitch bend you can send high precision, With encoder mode is also possible and the number of encoders is unlimited.
Fore sure there is some monitors in order of 299U$, you need ensure, the touch sensor is capacitive, DELL P2418HT is highly suggested. Another option can be a cheap windows 10 tablet, is possibe send midi trough wifi or lan, usedn free software + chameleon and you cna use a cheap tablet under 200U$
https://www.alibaba.com/product-detail/New-10-1inch-Intel-Z8300-Quad_60711892621.html?spm=a2700.galleryofferlist.normalList.1.2b62765dbtlKYr
Anyway, the monitor is my preferred suggestion, but the tablet can work like a charm if you need portability.
Again, if you work on a fixed place (studio desktop work), the extra touch monitor is the best.
Just some suggestions.