I build my front engine dragsters on a simple jig table. Alot of the 200 MPH dragsters of the 1960s were built on the floor. So having a table is just a easier way of leveling the car and having a flat surface to measure from. And is easier on your back. After you have figured out what motor , trans and rearend you are gonna use. You need to make some jigs. First thing you need is a alignment bar. This will travel thru the motor back to the rearend. To make shure that these two are perfectly aligned. I have a piece of thick wall aluminum tube. With sleeves that slide on to it. To make up the difference between the outside diameter of the tube and what the outside diameter of the main bearings in the motor are. Second thing is a empty 3rd member. Remove the inner and outer pinion brgn races. And machine aluminum pucks. That fit where the bearing race use to be. With a hole in the middle that your alignment bar can slide thru.