be patient or change your criteria if you want one sooner.
Your looking for 1 out 1,035 made, plus no -leather, for $7,000 tops in the middle of winter. Its a bit harder to find cars for sale in the winter, they usually go for sale spring/summer.
try this guy-
1987 BUICK REGAL LIMITED TURBO,
low 46K miles, recent black paint, luxury version of Grand National, very collectible, worth $14,000, located North East Mass, $9950. (978) 546-9309 . Massachusetts
it has cloth interior even though the ad does not say so, he has been trying to sell this car for a while now- (at least a yr) and I remember reading a previous ad that said it had cloth.
Borrow a little more scratch, make an offer and go from there.
Just trying to help.