Trying hard to find this card...

PSA 10 1989 Topps Ryne Sandberg #360. There is a pop of 33 for this card in a 10 slab, so I know there are some out there, but it seems as if no one is selling. If you have one for sale, or can be negotiated into selling, please PM me! I've posted this on the BST board with no success, so I'm going to try and reach out to the masses here. Any help would be great!
Le Mieux Collection
#19 All Time 500 Goal Scorers
#41 All Time 3000 Strikeouts Club
#25 Cal Ripken Jr. Basic Topps
#4 Greg Maddux Basic Topps
#7 Ryne Sandberg Basic Topps
#1 Fank Thomas Rookies 100%
#1 Chipper Jones Rookies 100%
#19 All Time 500 Goal Scorers
#41 All Time 3000 Strikeouts Club
#25 Cal Ripken Jr. Basic Topps
#4 Greg Maddux Basic Topps
#7 Ryne Sandberg Basic Topps
#1 Fank Thomas Rookies 100%
#1 Chipper Jones Rookies 100%
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#19 All Time 500 Goal Scorers
#41 All Time 3000 Strikeouts Club
#25 Cal Ripken Jr. Basic Topps
#4 Greg Maddux Basic Topps
#7 Ryne Sandberg Basic Topps
#1 Fank Thomas Rookies 100%
#1 Chipper Jones Rookies 100%
#19 All Time 500 Goal Scorers
#41 All Time 3000 Strikeouts Club
#25 Cal Ripken Jr. Basic Topps
#4 Greg Maddux Basic Topps
#7 Ryne Sandberg Basic Topps
#1 Fank Thomas Rookies 100%
#1 Chipper Jones Rookies 100%
I may send them in, what price would you buy at ?
Or should I say what price can a seller expect to get for this card ?
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90 ProSet Dexter Manley error
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81 Topps Art Howe (black smear above hat)
91 D A. Hawkins BC-12 “Pitcher”