Looks like a fun setup, I fought with building almost the same setup for a couple years, then decided I was going to do a kit car build instead. So I'm setting up my ej255 for that.
Only input, I usually run a DW fuel pumps only because they rate their pumps for e85 use unlike Walboro. Yes people use em and have good results, but it's just a piece of mind. And the stock cams will work, but with the upgraded springs why not get some cams and rev it a little higher? You should totally start a build thread too, I wanna follow your build, I might go back and do one in the future!