Hate to break it to you, but the Intellijel tiles will not fit in a Synthrotek 1U row. You have to go either with an Intellijel cab, and then use only the Intellijel tiles, or go with the 'normal' tile format, which opens up a lot more options but won't allow for the Intellijels. Also, unless you have a Clouds or know you can definitely source one on the used market, you'll have to use a third-party build of that module, since Mutable discontinued in in the last couple of months.
Next up: the RCD requires a clock. While there's things here that might double as one, you're not guaranteed that the RCD will properly 'read' them to derive its divisions. You'll definitely want a proper clock outputting proper trigger pulses to make sure that modules like that work 100% properly.
Definitely some problems here...you might consider stepping back to square one given that the case issue poses a significant stumbling-block to the tile row, and since some of that is critical to the overall function, much of that needs rethinking. Also, consider keeping the Model D in its own case; you'll be glad to have the extra space for modules later on, and it'll work just fine with the modular setup whether it's in the Eurorack cab or not.