So because of midterms, I haven’t spent time on this recently but I’m thinking something under the lines of using a thunderbolt to PCI-e and then a PCI-e to mxm converter.
(2 things I conveniently found here:
included with an housing and a noctua slim fan going through a 7mm heatsink.
I might use 2 expantion card slots for fan control and added power to the GPU, as well as I wont use these parts on aliexpress exactly but they will give me the basic idea of how to do this.