This forum tries to guide people with those questions all the time with good success when they listen. They do need to do research on their own too though to really make up their mind.
I see most recommend your basic, vforce reeds, advancing the timing a little and proper tuning. Then usually if they have to go into the engine, they recommend a 4mil(especially if they feel the crank needs replacing or need welding) long rod and getting the cylinders ported for it by a good builder. It's good to get a pro mod trans too. I just got one but havent yet tested it out.
I usually call up the builder of my choice then describe how i ride my bike, what fuel i want to use, what i want from the entire bike's set up then work something out we can agree on that makes me happy. About 5-6 years ago i went with a not so popular engine ported and even though it wasnt the most powerful engine, i had great customer service and a good running engine set up how i liked. This time i went else where because i wanted a set up he couldnt provide. No hard feelings there. I actually was able to narrow the builder i wanted via threads people already made here in the last year to year and a half. I wont name my builder from the past or present. My point is now who i chose, it's how i chose. Good luck.