I purchased a police trade in several years ago.
The list price for G35 with mos cut is about $700. I already have one G22 on hand that I had set up as a G17. So for $200 I purchased a slide with the cut already made. New barrel was a G35 threaded barrel $135. So $335 vs with taxes, transfer fees, shipping, etc $700.
33k psi is not really high pressure and of course will depend on how much support there for the cases. The extra strong recoil springs will make sure that the gun is truly absolutely as closed much as possible. Some of the 40 kaboom explosions may not of had the slide absolutely 100% forward. With newly assembled gun or one that is dirty such things can happen. With the current OEM barrel on test firing I had one or two with a light strikes that were off center that failed to fire. Indicates that the slide not fully forward. I have had this happen before with newly assembled guns. Goes away once gun is broken in. A stronger recoil spring will also take care of that and heavy loads a strong recoil spring is not a bad idea. I also have a full strength firing pin spring in the gun. The gun will be used under harsh conditions.
A g35 offers no advantage over a G22 with lengthened barrel that I can see.
PS just purchased that redding die to remove bulges and most of my empty cases were not fired in a glock.