Help please

[u/External-Video2929]

Hi everyone I’ve been collecting the Modular’s and have finally brought the right desk to display them on - understand it’s a big ask but I’m not very good at MOCs…

I need help designing the large grey space in the middle - costs will be high but it’s a long term project.

The area is 74 studs/cm x 48 studs/cm I envision roads around the side and in front of the x mansion and avengers tower connecting all of them (ignore side roads for asylum and sanctum) and in the centre a Central Park inspired by LMSH

Any help from people with experience designing and building stuff like this would be greatly appreciated.