I've bought a small item or two from that seller for my YJ, and was satisfied. As someone else mentioned, I'd look closer to home. Shipping will kill you on the larger items, and there's always the potential for shipping damage, which will be a PITA to deal with. Also, many of the Jeeps from that area will have much more rust than your LV Jeep. Parts from Nevada or CA may be rust-free.
My Ammo Can Console: http://www.jeepforum.com/forum/f12/yet-another-ammo-can-project-finished-1498520/
My 8.8 Swap: http://www.jeepforum.com/forum/f12/yet-another-ford-8-8-swap-extras-1565339/