Selling various used PCIe risers

I am selling a variety of used PCIe risers. I've listed what I paid for them (in USD). As a general rule, I'm looking to get about half what I paid (BTC accepted of course), but feel free to make an offer. Larger orders preferred; for small orders I'll need to charge a little extra to cover shipping. I'm in the USA. Buyers from other countries may need to pay a bit more for shipping.

1. PCIe x1 to x16 adapter

Paid $16, 1 available

2. Cheap, low quality 6" PCIe x1 flexible risers

Unmodified: paid $4.50, 5 available
With the end sawed off so it can take an x16 card: paid $4.50, 6 available

3. Expensive, high quality PCIe Gen 2.0 x1 flexible risers

6" unmodified: paid $58.50, 1 available
12" unmodified: paid $73.50, 5 available
12" with the end sawed off so it can take an x16 card: paid $73.50, 2 available

4. 12" PCIe x1 flexible risers with separate power

These risers take their power from a separate connection rather than the slot on the motherboard, which is useful if you have too many cards drawing power from the motherboard.

I have two varieties:

Power from standard ATX power supply: These draw power from a standard floppy connector.

Power from external 12V power supply: These also use a floppy connector, but only the 12V and ground pins are used, allowing a 12V-only power source to be used. This can be useful if you need to draw power from a power supply rail that only supplies 12V. I have some adapters that can be used to convert from 6-pin PCIe to floppy (via molex) for this purpose -- see below.

Power from standard ATX power supply: paid $46, 3 available
Power from external 12V power supply: paid $56, 6 available

5. 6-pin PCIe to Molex power adapter

Converts a 6-pin PCIe power source to a Molex connector. Only 12V is provided, not 5V. Useful for things that only need 12V, like fans or the powered riser above.

Paid $12.95, 6 available

6. Molex to floppy power adapter

Converts a Molex power source to a floppy power connector.

Paid $2.95, 4 available