Don’t do it. I don’t think any legitimate A-goN user would have 50+ transactions and has not accepted PayPal. Read the feedback. If there is no mention of "he doesn’t accept PayPal" or "he required a cashier’s check", then there is your answer. Buyers would have at least mentioned it in feedback IMHO.
Move on. You are likely being scammed.
Move on. You are likely being scammed.