I was just catching up on this forum. I decided to look around the interscreen at tool prices. Rockauto.com was lowest on a couple I looked up. Lisle 15000 hone and a leakdown tester. (Brand: Performance Tool
3.2 out of 5 stars 92Reviews
Performance Tool W89729 Leak-Down Test Kit (Not a Compression Tester).
I order my ngk sparplugs from them now.