Advice
The very best advice I can give you is to WAIT don't build your engine until you can put in the right parts. I have done this in the past and it just costs us more money in the long run because if it brakes its a waste if you later decide to build one out of "good parts" your old engine is still of no use and you will have to buy the stuff twice. But this is just my 2 cents, because my biggest problem has always been when I wanted something I wanted it right then!! good luck