Spare parts for Optima Rebreather

Have some spare parts from Dive Rite, still in the package/ziplock bag, for an Optima Rebreather.

Attachment 12641 Attachment 12640 Attachment 12639 Attachment 12638 Attachment 12637

Parts as follows:
DRT-16 Oxygen Sensor harness-set of 3
DRT-200-5 2011 model connector ring o-ring (3 each)
DRT-24-5 O-ring-counter lung, welded flange (2 each)
DRT-26-1 O-ring - canister hose adapter (2 each)
DRT-26-2 O-ring - Optima Canister Head/Lid O-ring (1 each)
BC2808-3 Nut-4-40 x1/4" (2 each)
DRT-11-3 O-ring-Delrin Handset Battery Cap (2 each)
DRT-10 O-ring - T Piece / Coupling (10 each)
DRT-300-6 DSV-2011 Model Valve Cage O-ring (2 each)
DRT-31-2 Screw 4-40 x 1/4" SS Php MS (2 each)
DRT-31-1 Screw 4-40 x 1/2 SS Php MS (2 each)
DRT-31 Corregated Hose Clamp (2 each)
DRT-6 Corregated Hose - 7" (2 each)
DRT-7-10 Corregated Hose - 10" DSV Loop (2 each)

Original cost is $119 plus change. Asking $80.00 and I'll pay shipping to US. Thanks!