Supplies needed to fabricate a gate assist

[T. Wheeler]

What supplies are need to make a gate assist?
I already have the springs.

I just need to know what size/type of pulleys and what size cable to get, and any other items I've missed.

Thanks,

[sildoc]

3/8" cable or larger. 4" pulley or larger.
Pipe 1/4-1/2" larger than spring
1/2" bolt or larger to secure spring of course nut and washer
caribener to attach cable to gate and uring to weld to gate.
pretty simple.