I've been offered a matching numbers Tantal kit and a 2160 ct. crate of steel core(?) ammo for $620. I'm late on the scene for 5.45 rifles. I know that 5.45 kits and ammo was very inexpensive a year plus ago. I know that the Tantal is more involved to replicate in semi form. Is this a good deal in today's climate and what options do I have for a receiver? Was this rifle available in a fixed stock configuration? I have enough folders and too few fixed stock.