Can only use American parts off the shelf. No parts be from an overseas company that has a company here in the states.Second you can spend no more then a $1000.00 no gun already put together. You have to start from scratch and go from there. I'll start found a Stevens 300 win Mag for a $100.00 bucks. Found a seems to be a nice scope for $483.50 and a 20 MAO rail for $40.00. I like rifles somewhat on the heavy side so went with a Choate Super Sniper tang thing weights over 6 pounds. $229.00. Now Will probably catch some heat on this bot ordered a heavy 26" barrel it's an E. R. Shaw be here by Christmas if thing go well. You add it up comes out to right about $1018.00 so broke my own rule right out the open. SO anyhow as close to the $1000.00 as you can .Let's see what you smart folks can come up with to build a rifle And maybe Even a good one time will tell. So there my friends is the challenge,