Which car should i modify?

i have a 93 Honda prelude si h23A i have a oil leak and i have a 03 eclipse gs 4g64. the prelude needs a new paint job and motor cause of the leak im trying to make alot of HP which car should i try im no getting rid of neither so that's not an option to sale for a look at how they look check out my cardomain http://www.cardomain.com/id/gist864