Andrew, Im in Renton and have one. However it wont be home til this summer from out of state body and interior shop.
You are welcome to contact me for anything I can contribute.
Here are some pics of my R8 V8 SLC for reference. This is lowest possible mounting of the engine in the SLC. Fran did modify rear of the chassis during the build to accommodate the engine but not extensively.
Top of my list for domestic V8 would have to be the Ford Voodoo - IF only you could buy one! Only source would be a GT350 mustang.
DOHC, Flat Crank, 8200 rpm, 540hp with room for more.
Must be said though, the LS fits the bill perfectly for 3 very sensible reasons - power, cost, and...
Ha Fran.....
That lesson I have learned on my SLC engine choice! Check the depth before you dive in..... I didnt even check to see if there was Water! We did get a good transaxle option out of it.
Better you build it and we will come :)