Some mix up on the window nets, you technically donot need a window net unless you run 9.99 or faster which is the same point you need a full cage. Crossover is that if you have a full cage you have to have a window net by NHRA rules, go figure. In other words roll bar to 10.00, window net with all full cages, even if you run 12.50, with a full cage.
Also go with the full metal buckle as mentioned above for sure.
If it will stop raining tomorrow, i'll post some pics. of my installation, it's pretty neet and clean and i'll post the mat'l used.
Zip.