Hi fullzero,
I agree they are worth more than $55. In fact, they can power up to two Antminer S3 so I would pay the equivalent of $110 for them which I think is very fair.
So for 12*S3 and 6*RM850, I would pay 1500 USD.
I see I misunderstood you $110 shipped for an RM850 is a fair price.
After reading your tread
https://bitcointalk.org/index.php?topic=933567.0 I have to say I'm really not getting a warm fuzzy feeling.
This is why:
I don't think you have been screwed by paypal as a seller yet; I have lost over 5k in one transaction because of them: it is absolutely unbelievable how they completely side with the buyer no matter how outlandish their claims are. I will not use paypal for a deal on the forum.
Trust on the forum actually matters; unlike ebay feedback. Real Trust is forged when you risk BTC as a buyer by sending first without escrow, or as a seller by shipping first before payment without escrow. This is why the members who offer escrow services are Trusted to hold the funds; because they have the Merit of many such deals. With large transactions on the forum Escrow is really the only way; unless you really trust a member based on previous deals.
You have no Trust feedback so it is unreasonable to expect others to Trust you; especially if you are unwilling to Trust them when they have significant Positive feedback.
I would recommend doing a few small deals to build up your Trust.