68 barracuda blower switch... Gutted then re-gut

So I have my blower switch out and gutted. The nubs on the back of the wire leads inside the switch are worn and very thin, (burnt a bit as well). The spring is weak but I have managed to get continuity...
I found a very similar looking switch for a 72 d100 it looks identical save the lever and it has spade connectors instead of riveted wires. Has anyone ever tried to take the guts out of the 72 style truck switch and put inside the barracuda switch housing. If anyone has tried and had completely failed I'll give up. But it's only $18 Canadian so probably $12 American. If no one discourages me I'll give it a go.
Also thinking into the future, maybe hooking up a relay to the switch would make it last longer?
Any thoughts?

Get an original used one.

Years ago I did this to my 73 Dart Sport AC 3 speed fan switch. Removed the guts from my old truck switch and added relays for high and medium. Low speed was fine as is.

mderoy340 said:

Years ago I did this to my 73 Dart Sport AC 3 speed fan switch. Removed the guts from my old truck switch and added relays for high and medium. Low speed was fine as is.

Click to expand...

Ok, sounds good. I'm ordering the switch. Didn't realize i need relays for each speed. Mines only a 2 speed so I'll just do the high.

Ok I finished the switch here is a few pictures, it works perfectly, good as new.
The connectors on the back are arranged differently than original so I had to cut the harness at the switch end and attach 3 female spade connectors, it is in the pictures.
I found an NOS switch on ebay for $275. I have better things to spend my money on. Also this way I am not putting in a used switch. If I went the used route as opposed to NOS. I figure I will wire a relay for the high speed, hopefully to extend the life of this new switch.