will use my account as escrow and read to use bitcointalk escrow.
Sorry, but what do you mean by that? Your account here as an escrow (huh?) in a PayPal trade where there is no meaning for a bitcointalk escrow?
I think my account is worth that amount so I won't risk scam,
plus I'm willing to put $500 into escrow for a month or two before making the transaction and get it back after that time.The amount has been reduced 450.
I'll pay $500 and get $450 BTC.