How about a brand new, in the box HL Abrams for sixty bucks? There's a current issue with elevation but I have enough parts to replace anything it needs. I bought it, tested it (that's how I know there's an elevation issue), made sure it runs properly and everything else works fine and stashed it away. It was one of two, and the other I went all out on. Braced the hull, ball-bearing gearboxes, metal everything, from tracks with rubber pads to metal suspension arms and bearings in all the roadwheels and idlers, custom paint, and on and on and on. For me that project was mainly about trying new stuff, like seeing if I could get the armored glass right (give myself a B+ on that one), and making my own decals for the markings on the front (1/37 Tank Battalion, 1st A.D.) because those are the guys that were across the highway when I was at Katterbach with the 501st CAB (Combat Aviation Battalion). You can see the thread here
http://www.rcuniverse.com/forum/rc-t...bat-ready.html
and if you scroll to the bottom of the first (and only) post there's a link for video on the Angelus Mortis.
Let me know if you're interested in the Abrams.