Can I get a consensus on a fair selling price for a 1977 FJ-40 4 speed transmission, rebuilt by Marlin at Marlins Crawlers about 3 years ago, seen about 2000 miles since all "on-road" miles. Includes PO homemade Chevy engine adapter. Probably won't be selling for a few months, but would like to know what I should be seeing back in return for this item.