I'd like to put an oil cooler on but the bike has original paint and I'm worried about the front fender hitting it. Also I'm wondering about how much oil to put in the primary. The guy I bought the bike from says it takes a quart but I'm thinking it only needs about 7 ounces

 

If the primary has been isolated, just fill to bottom of clutch pack. A little ATF will identify where small leaks are coming from.