Eight or nine nights in a two bedroom on two weeks notice??? Could be a longshot.
Your best bet is probably Old Key West. Assuming you want to check-in on 5/3 and check-out on 5/11, it will cost 290 points for a 2B. Point rental prices are typically $10 (or more) per point. So, you can expect to pay at least $2900 for the points you will need.
Check the rent/trade board for someone with this number of points available and he/she can call MS to check on availability.