I have old RA-1's that I could use too (not fresh, just still somewhat usable), but I have to say that NASA really screwed up here and pissed a lot of people off...
Most everyone already bought R888's because we were forced to, and RA-1's aren't in production anymore, so it's a battle of money and connections to get your hands on a fresh set. That is not "spec" racing at all. People in other spec classes are already scrambling to find a set of RA-1's to save for Nationals, which is really diminishing the value of that event.
And even if RA-1's were readily available, this is still way too late to make a change like that for this season... the majority of us who already bought the inferior R888's shouldn't be penalized by planning based on the clearly stated rules.