im assuming these are the same exact thing as the planet waves custom pro cables, just i need to put it together and cut it myself? am i right about this? what are differences if there are any.
average, I would avoid, Lava cables solder free kit is way better.

4 out of the 5 patch cables I made with Planet Waves failed within a week.
All of the Lava cables are still going strong after months.
'08 Gretsch White Falcon
'98 Fender USA Deluxe Tele
'79 Greco Les Paul Standard
Airline Stratotone Crafter GAE8

A bunch of funky pedals

Handwired 50 Watt Plexi Lead Clone w/ Orange 4x12
I bought the pedalboard kit they do and found the quality to be alright. The ends seem solid enough and the cable is fine. The only concern I had was the screw system they use to attach the ends but its held up fine for the past 6 months.