Regarding the Lola situation, I just thought of this:
Lola cars is out of business but from what I read, Lola Composites (I'm assuming thats the people that do the sculpting of the bodywork and the carbon fiber) is still in business. I'm thinking two allternatives can be done with the former Lola Chassis:
1. Maybe Toyota can perhaps do something along the lines of what HPD did with the Courage LC75 chassis and possibly design a new car around it. Lola Composites could make the new bodywork and Toyota could supply them to the teams. It clearly worked out for the former Reynard 02S (look at how many evolutions came out of that) so why not here?
2. Maybe Dome can perhaps be subcontracted in to doing the redesigns (reffer to their BMW V12 Reworking) with Lola Composites as consulting roll.
Again once all that is complete, Toyota can supply that to the teams.
Now obviously In both scenarios, The chassis will have to be continue being made, but because the chassis and tubs are already compliant with the ACO's Crash standards, there wouldn't be any work necessary for crash testing. Toyota can also continue their factory P1 Program withoujt much interuption.