I'd be interested in a trade/barter for any of the following in good working order.

Rollei medium format SLR , body only.
Pentax SLR body, No K1000's.
Nikon 24mm lens, 85mm, 105mm lens.
Pentax SMC lenses. A's or K's. 50mm F1.4; 35mm F2, 24mm F2.8, 28mm F2

I'd prefer all barter's to be based on KEH prices.