How much did the materials run you? I don't know costs or even where to purchase the materials. I don't even have the equipment to make anything. And did you manufacture your own baffles? I've seen the kits out there for $200 or so and if I'm going to spend money on a kit, I might as well purchase from a brand name.
My other question, how to you make sure you line up all of the holes correctly? That would be my biggest concern, a baffle strike. Maybe it's easy and I'm just not in the know.
I picked up my hardware from SD Tactical.
1.5" dia x 7.6 " Ti tube, solid/undrilled Ti end cap, Ti muzzle adapter, and SS freeze plugs cost me $190.
Picked up a baffle forming tool from JD Tactical for $110, but I'll be making more cans as time allows. There are other ways to shape the baffle if you don't want to buy this particular tool.
As far as ling up the holes-
The baffles are a pretty tight fit in the tube, so if you center the hole in your baffles they'll be in line. The easiest way to check this is to assemble the can and simply hold it up to a light and look through the bore. If one of the baffles was drilled slightly off center you wont see a perfectly circular bore.
I was building my cans while back stateside on a brief vacation so I opted to buy the baffle forming tool which also serves as a drilling jig which pretty much ensures you'll be centered.
I also used a Ti muzzle break from SD that has acme threads for mounting the can. The muzzle adapter has these threads as an option. Not quite as fast as a QD but far faster than a direct thread on.