40 big ones !! I guess I can get away without using first rate stuff. I started back in 1972 and I think I've only spent about $15,000. I buy almost all of my stuff used or it's given to me for testing and experimenting. The last 4 stroke engines I purchased used was for 2 Saito .72 ($35 each) that were in a scale B-25 that crashed when one engine went out, no damage at all to the motors. I've got so much stuff/junk it is sometimes tough to get around all of that stuff without bumping into something.