Glad you got it! You're in the Stud's radar now so you're in good hands ;-).
I bought a top end rebuild kit off ebay (cylinder, piston, rings, wrist pin, cir-clips and gaskets) for my 73 ATC 70 and I couldn't be happier with the fit, finish and price, $69.00 US to my door shipping included. It's still running like a top after 3 years. How can you go wrong?