WTB - HOB Filter

[TaTeR ToT]

as the title states, i am looking for one of the following HOB Filters -
it is for my 20g Long

Aquaclear 50 (must have gray media basket)
Tetra Whisper EX 45 (must have bio scrubber)
Marineland Penguin Bio-Wheel 200 (must have bio-wheel)

filter must be in perfect working order with all parts.
pm me with what you have and a price.