If i come back to racing as soon as my sling comes off i might get in another 7-9 races. That may be worth buying and gluing up tires. The other alternative is doing 1 or 2 races, or just waiting out road season. I really want to do at least one race, under the jump right back on the horse theory. I'm not sure I'll be able to decide whether to race out the season or just wait until road season until i find out just how much i've lost though (physically as much as mentally)
sorry to read about your injury. i'm of the 'life's too short' mindset. if you have that many races, hell--even if you have just a few--might as well get some enjoyment out of them. i took mine out on some trail today. my frame of reference is a long time running MTB tires tubeless at low pressure...the feel of a good tubular on the same trails is pretty amazing. not a long-term test and i'll wait until i start racing them, but i was impressed with the way they grip and hold on off-camber stuff. i ran them at 25psi to start (700x32s). you're also likely a much better rider than i am--'crosser especially--so i bet you would get even more out of them than i do.
do you ride rocky courses? are punctures stan's is likely to seal probable? there are some tubulars with a puncture resistant layer (will slightly reduce that tubular feel, but not by much) that may be just fine w/o stan's. that's what im going to run.