If you want to sell and can finish the car I might be interested. As to Motor an 400I setup with tws in jector stacks would seem close to original in look and sound, but a 55o motor is going to have more power and be more reliable.
I do not think anything will suffice except for a Ferrari V12!!! A fantastic project I must add so I commend you for your effort and I want to know what is under the car-cover??
Great project my alltime favorite car, have you seen the RCR bodies I am thinking of buying one and putting a LS3 with 600hp, do you think thats too much hp for a 2300 lbs car wet, it will be a street driver and some fun track time . I do think a V12 would be great but what do they cost? Good luck on your build. Max