Doing a late spring clean I found a AA voucher for $827.81 (having used part of the original $1000 voucher) which expires on Aug 5th.
My question to the community is how can I use this essentially free money (yes I know TINSTAAFL) on AA to maximise my BA mileage?

I used the dream maps feature on travelocity and found a nice $98RT mileage run from STL-DFW-FLL which I am doing late August. I was planning on just doing 6 or 7 of these after finding the voucher but it is now gone. Not only has the cost gone from $98 to $238 on American but the fair class has gone from N (on which I can get BAS miles on an AA flight) to L (which gives no miles at all). Other option that I saw was a RT for $849 STL-DFW-HNL for about 8500 miles. Or STL-LAX-TPE for $995RT that will deliver a nice 16400 miles.

Any creative ideas out there? Prize of 4 UA 500 mile domestic upgrades to the first reasonable(as you can imagine for someone willing to travel half way around the world simply to get some FF miles, reasonable is a very relative term ) 25K idea that works.