I purchased a pair of NRG type R seats for about $440 (delivered). They are reasonable quality, but I wouldn't expect them to last in a daily driver. I mounted them on sliders, and with my Boyd tank, my son (6 feet) and friend (6'3") have enough legroom. The seats themselves are a tight squeeze in the 818--they touch the side panels and the e brake trim. Had I known this, I would have probably looked for something else.