Just bought four MK1 Rabbit GTIs

Yesterday I came home with four MK1 GTIs. All of them are 1983, all are from the Northeast US, non of them currently run.

I got them from an older VW collector who refused to dump anymore money into them. He sold them to me for fair price knowing that they will be taken care of.

3 are black sunroof models. 2 of those have engines, the third has the engine in pieces. The prize of the haul is a red non-sunroof and the closest to being roadworthy. This car he had bought pre-owned with 20,000 miles in 1984. A few years ago he did a partial restoration by reconditioning the suspension, bushings, brakes, engine overhaul and much more. It is set up for AutoX but still street legal. I have two folders complete with documentation of when it was a daily driver and the period in which he rebuilt the car.

The other three cars would be best off as parts from my POV. They are all mostly complete. Maybe someone could use 3 to make 1?

I plan to sell the parts cars immediately. I have no interest in taking them apart and selling parts separately. How much can I realistically ask for engine less car and the ones with engines? See photos.