Up, I completely feel your pain! My very first AK conversion was my PRE-BAN Norinco converted to use a Russian folding stock! That was a really high pucker factor, because way back then I had a drill press, some cheap drill bits, and I had just bought this tool called a "dremel".
Chin up, you can do it if you really want to. There are a few things to remember when you're doing it, and if you go slow and "measure twice, cut once", you should be able to figure out everything you would need to.
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That said, let me comment on that stock!
I held one of those in my hands at the gun show yesterday.... OBSERVATIONS:
It felt solid. It was not "flimsy" like those other Tapco buttstocks. The sheer size of the parts make up for any deficiency of the plastic composite material. It won't be near any hot part on the rifle, so it should have no problem with heat. It felt like the same high-heat resistant material that my fancy kitchen utensils were made of. I think it had a fiber mix in the material...it felt like other fiber-infused objects I've handled. But not like fiberglass. Much lighter.
It felt like it would work well with any AR-style buttstock you wanted to put on it. It would give someone unwilling to jump into the deep end of the pool a pistol-grip conversion without worrying about a really long pull.
Will it stand up to bashing in a wood door with your buttstock? I don't know. I would not hesitate to use one of those for the kind of shooting anyone on these forums will do.
YMMV.