SMC-918 springs, what works?

[Aloxite]

Hello all.
I just made a deal on a Hungarian FEG SMC-918.

Information seems to be pretty sparse on these but from what I can get from the net:

-They are a variant of the Walther PPK, with some changes to the safeties and an aluminum frame.
-Chambered in 9x18 Makarov, 6+1 capacity
-They are the smallest pistol chambered in 9x18 MAK imported into the US
-Pretty much the same design as the FEG PA-63s that are available, but with a shorter barrel and a shorter grip.
-It is a more recent production of the FEG RK-59.

This website has a bit of info on the different FEG pistols and a picture.
www.sunblest.net/gun/FegRK59.htm
It mentions that the RK-59 can use the PA-63 magazines.
Anyone able to confirm that?
I figure that if they lock up, I can add some material around the base so that it doesn't move around.
Also, anyone know if the SMC-380 mags will work with the 9x18 Mak.
I can find those online (not cheap) but not the SMC-918 mags.

I was checking out Wolff Gunsprings and they offer hammer springs and recoil springs that fit the PA-63 and R-61 (R-61 is only mentioned on the link from the new products page.)
If I understand correctly, the R-61 has the shorter grip and mag like the SMC-918 but the longer barrel of the PA-63.

So I'm figuring that the hammer springs would most likely interchange with the SMC-918.
There is a chance that the recoil springs could also work, but the shorter barrel might complicate that one.
Anyone have any insight into this or any other advice on doing a trigger job on these pistols?

Also, what firing pin spring would work best?

Anyone know where to get factory grips for the SMC-918/R-61/RK-59 that don't have the target thumb rest?
I'm probably going to go ahead and make my own grips out of some figured wood because I figure that even if grips are available, they won't be cheap.

Also, if anyone has any CCW holsters they recommend I'd like to know,

Thanks, Aloxite