Hey buddy, glad to see you want a Honda to race, I dont blame youi as they are a great car to race. I can speak from experiance when talking FWD 1990 LS integra. I still have my racecar and won the 2000 and 2001 Improved production state championships. Having built my b18A/ Vtech back in 1999 the engine lasted a good 10 years when built well. It use to get around Phillip Island in 1:51. Im now building a B20/Vtec and i expect that to last at least 6 years. The Gen 2 Integra has an extreamly low drag coeficiency and can be made to strip down to 960kgs without much effort. Dont be swayed to go RWD, a good FWD will give most RWD cars a good run for their money. I know from experiance ! Just look at your buget and go with what you like. If you want the best engine builder I know a guy. I also know who not to use and that is a guy by the name of Andy. He use to run a place called AK Automotive. Andy is a great guy but cannot build a race engine. He built me one, charged me $10'000 and the thing lasted one weekend.
If you want to see my car look at TOVA and type in Black Beast. Or just google it.
All the best Gary