You have options with either company that will effect the price and it looks like Strange has prices with trans yoke or without
I like using Strange components myself but I had a local guy make my shaft 3 1/2" mild steel with 1350 Neapco Brute Force joints.I would also look at Mark Williams MasterLine shafts
Whatever you do make sure you follow the measurement instructions to the letter or if your current driveshaft is good then just measure it.
You should be OK with mild steel but if you plan more power then go with Chrome Moly
Gus