A race valved Koni Yellow will easily handle 1000lbs - I've been doing it for years on my ITA car. I'd take those 750's you've got and put them in the front, buy a set of 1000's for the rear (come on, they're like $100 a pair), use nothing but the stock front bar, and something huge as the rear bar. Just my opinion.

I've said for years that I'd love to see someone build a Del Sol Si for ITA. Exact same drivetrain and weight as the "EG" Civic EX/Si, but 10 inches shorter. Same great straight line scoot, but with a CRX ability to change direction. Hell yeah. Plus it would just be a cool, different car. As for building a Del Sol VTEC for ITS, I'm sorry, but I just don't think that B16 will ever be fast enough in a straight line to accomplish a whole lot. Sorry, but the 2.3L Prelude Si is only 130lbs more, and it will downright MURDER a B16.