Drive train is the big thing you need to get into. Clutch and driveshaft would be the next. Not sure what they are doing on axles for the 2015 and 2016's. What RPM are you leaving at?
I have a spare diff in case I blow mine up. Already have the DSS 1400hp axles and their aluminum driveshaft too. I have the McLeod clutch which seems to be holding up very well. I'm also getting a new bell housing in a few weeks. I've launched anywhere from 3,500 to 5,500 with my best 60' being from the latter, 1.60
I was spinning on every hard launch, so when I figure out how to hook, I'm sure things will start breaking.
If you decide to come check out the airstrip one of these days you should send me a PM and I'll come out and get you VIP parking/staging in the pits. The staging lines can be over an hour long on busy days.