Erm, if I may be objective:
1. Typrobin, you shouldn't have made your donation to Red Cross without receiving the money. Since you chose to do that, you should accept that you made the donation at your own risk.
2. It appears you have informed the other interested buyers about your Red Cross donation, but you didn't mention to 'poor student' Malcolm that $30 will be donated to Red Cross, isn't it? So if he isn't aware of it, and eventually he pulls out of the deal, you can't blame him for your $30 'upfront' donation.
3. Tapping on the above 2 points, since you already made the donation, take it as a good cause from your heart. No harm, isn't it?
4. Did 'poor student' malcom accuse you of cheating his money (abt the wiring and stuff?)? Your statement below:
"y would i wanna cheat it out of something tat i am not earing a single cent from?
y would deepblue wanna sell something tat is not working??"
Seems to suggest that 'poor student' Malcolm called you a cheat or something similar to that extent. It wouldn't be fair to him if he hasn't said that.
5. You stated: "now the "poor student" backs out of the deal due to the fact that the MH is not wired up..assuming tat it might be a faulty unit...i already told him tat it is pretty easy to wire up..but he insist on trying the item before taking it...so i called off the deal"
I do not know the agreement between Typrobin and 'poor student' malcolm, but:
Typrobin, I think if you had given 'poor student' Malcolm the opportunity to test out the item, he might have eventually bought it. Unfortunately you called off the deal, for what I presume was because of your lack of time and patience. (I see you have to clear all your stuff and I really sympathize with your predicament)
AND 'POOR STUDENT' MALCOLM, if there was indeed an agreement on your part to purchase the item @$80 (whether you are aware of the Red Cross donation at this point is inmaterial), and if you never did raise the issue of the wiring at the point of agreement, then that would have been your responsibility (or for want of a harsh word: 'fault') for the unfinished sale, i.e. breach of contract.
My tiny 2 objective cents.