Sorry to burst your bubble *again*, but I don't know a lot of people that are going to pay alot (if anything at all) out of pocket on a used lease. Not trying to be a pr*ck to you, just being real.
Typically people give incentives for swaping their leases, not ask 10k up front.
As ring007 did that math above. Your numbers are WAYYY off base. However, i'd take it off your hands with $0 money down.
2014 F10 535 xDrive Darl Graphite Metallic - Current
2009 E90 335i Sapphire Blk Met- SOLD
2007 E92 6MT Sapphire Blk Met - SOLD