If it's the same pistol I'm thinking of then it's the Competition Model sold by Browning during the 1980s. It has an extended barrel that incorporates an integral barrel weight unit, adjustable sights, a special spring setup that increases the stability of the barrel during firing and polishing of internal parts. You can check the value in any number of firearms price guides. Rarer HPs are the ones chambered for 30 Luger and some aluminum frame HPs produced by FN for a South African contract. $1,000 seems high for a limited production pistol of such recent vintage. IMHO it would have to be unfired, with its box intact, all accessories and paperwork, and complete ownership records to approximate the asking price.
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So many pistols, so little money.