It's doable. Keeping it a street car will make packaging tight, especially with the turbos you want to use. I'd plan on using a L/A intercooler to free up a bunch of space. I haven't looked yet but I believe there is a decent amount of room between the front tires and the firewall as well.
We'll be doing a rear mount twin setup for a road racer soon, I'll have a look to see what room there is.