call your guide and get on the wait list. i called a couple weeks ago to be put on the wait list for 225 BWV points, and got them the next day!! granted, it was my first purchase, so i told them i didn't care what usage month i got. but i was first on the wait list, and was lucky enough to have it go through quickly. and i don't know about smaller contract sizes, but mine ended up being two separate contracts....one for 150, and one for 75, so i'd say it's "doable".
good luck.