SWAP macro lens complete set

I am looking for a K-m/K2000 or inexpensive K-x for swap with

SMC Pentax-M 100mm in excellent condition, optics clear, mechanics perfect, the only issue is that previous owner engraved some characters on the exterior paint, nothing disturbing though (see photos)
Genuine Pentax back and front caps
Genuine Pentax case for this lens (not shown)
Very rare genuine Pentax lens hood correct type for this lens
Very rare genuine Asahi Pentax 50mm auto extension tube
You can see the photos by clicking the following link (sorry it is Turkish)

http://www.sahibinden.com/ilan/alisveris-kamera-fotograf-lens-filtre-smc-pentax-...?

First coin photo taken with Ist DS + lens only, minimum focusing distance
Second coin photo taken with Ist DS+ 50mm tube+ lens, minimum focusing distance

I'll pay the extra, for sure