FYI: 3 ways to make an AK part, due to all the variations in receivers;
a) you make it to minimum spec, it slops around in everything but will be a true "drop-in" part for those afraid to use some sandpaper/file.
b) you make it to maximum spec, and it requires fitting in 95% of receivers, I MUCH prefer my parts to be made this way, it's true that some clearance is necessary, desirable, and a part of the design in the first place, but I like to decide what gets cleared and by how much.
c) you split the difference, half require fitting, the other half drop in and slop around.
If you want a max spec trigger that doesn't slide back and forth, find a triggerset out of a Chicom, a Poly or a Mak, the triggers are large and fill the space in the receiver cut-out nicely, might even have to sand a bit to fit. The hammers can be hit or miss and the disconnector doesn't really matter, I use whatever I have laying around that has the most disconnector engagement.
I almost never see a hammer that has too much slop.
You can always nickel plate parts to add a few thousandths, it's super easy.