One thing the shutdown has been good for is looking at old projects. I had a few milled Yugo M70/72/76 type parts and receivers that hadn't been worked on in over 6-9 years depending on the kit. Tried locating everything and found most of the parts to make a underfolder M70, M72 and spare M70 receiver sections and M76 parts to make a M73(?) in 7.62x39 or at least a M76 looking tabuk. Made barrels for the M70, and M76 clone about 6-7 years ago, and a set of sideplates. Couldn't find the sideplates and remembered I'd given one to a buddy so I milled some new ones. I had one 100% receiver and decided on the M72 to use it on. Riveted on the bullet guide, trigger guard and grip base. Pressed the barrel on it and have set the headspace. The barrel pin hole didn't clean up with a 7mm reamer, so a .290" reamer is on the way for a slightly oversized barrel pin.
Next up is the M73. So far the left hand sideplate has the 4130 ejector dovetailed and welded on and the sideplate has been welded to the front and the back of the old receiver on the inside. I've got the right hand sideplate fitted and will weld it the the front and back pieces of the old receiver on the inside also before welding the outside and cleaning it up. Then trim the sideplates to fit the receiver botttom and weld the bottom plate in place.
Likely take a month or two to finish these up enough for parkerizing and likely gunkote if the welds are noticable. Not in a huge hurry to finish them, plus I still need to find/get a few parts that are hiding on me. Here's a few pics of the progress so far.