Here's my prediction. You buy a frame to build it like you want it. Then you start collecting parts. A arms, spindles, swingarm, axle, etc. of coarse you didn't get bolts so you throw it together with 3/8" allthread and nuts.
You're so excited when you find the wheels and tires you need to be a hardcore trail rider. You pay too much for them, but you need them. WooHoo it's finally a roller!! You buy cases, cylinders, head, pipes. Cool!!!! It's finally starting to look like a Banshee. Fast forward 2 years later. It's 60% complete. It still needs key components like, wire harness, electronics, crank, pistons, brakes, etc. You have spent well over $3000. Actually more like $4000, but you don't count shipping costs. The only riding you have done is coasting out your driveway and down the street. Your girl gets knocked up and you sell the whole lot for $850.