I definite recommend a larger case and more utilities over a bunch of larger sexy voice modules.
Get the largest case possible and with handles for easy transport. I’m loving my Doepfer monster case as
I won’t run out of room for a long time. MDLR makes really good 14U cases with option for a row of 1u modules.
Utilities are super important. I’m using WMD SSF Toolbox, Mutable Instruments Kinks and Links and tons of modulation now with complex patches. Good attenuators and VCA key as well. I only use one or two voice modules lately with great results. I started with a 6U case that I quickly outgrew. Now with a portable 14u case, I have room for lots of support modules, utilities, as well as the fancy voice modules.