... a fine plan - unless someone else comes in with a $999 proxy bid - then you will wind up paying 5x more than the radio is worth as it will bid and bid and bid till one of you hits your proxy limit.

you can still sit there and try the "bidding at last minute" method, if the timelimit runs out before Ebay can process the proxy bid, then you can still win, but it takes luck, timing and a really low ping.