Schedule 80 will take much more pressure that that generated by a 150" well.
I would use sched 80. Use SS couplers to attach segments. You may want to use SS clamps over the threads for an extra measure of stability. This is a kind of belt and suspenders approach.
Polyethylene rope for safety line. Nylon absorbs water and deteriorates. Keep the rope out of sunlight.
Check specs for the current draw of the pump. Look up current in a wire table to find proper capacity wire. Bigger is better here. Bigger wire; less loss. Insulation rated for submersion.
Torque arrestor - see manufacturers specs. Some pumps need it; some do not.
Getting the assembly down the hole; figure weight of pump, wire, pipe, and water contained in the system (water weight mostly an issue for removal). You need to be able to manage the dead weight. You also need to clamp the down-hole pipe and screw on the next section. The rope/wire used to hold the pipe should have a swivel fitting on the end with a male adapter that fits the pipe.
The weight will probably need assistance from some sort of machine. It is generally recommended that you don't use something like a car to do this.