" I have been trying to set up a date with the buyer that works for him. If he really is bed ridden any date should work (hypothetically), but he has not responded to the two emails I have sent him over the past 4 days (which to me is a red flag)."
I've lost track of how many red flags you've accumulated. My opinion is you made the deal and should honor it... Despite it being so dang scary for you.
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