Ideal solution for 2025:
Keep Rally1 Hybrid cars. Hyundai and Toyota run three of them, Msport run two.
Total: 8 cars

Now... There are some "old" 22-23-24 Rally1 cars not being used, right? Let Msport remove the hybrid and sell/rent some of those. (2 or 3). Add ballast and let them score points. Let Hyundai use another 2 or 3 of their old cars without the Hybrid for their new costumer program (maybe a Junior program?)
Let Toyota mount a Subaru bubble in 2 of their older cars and find a partner to run the program.
Total: 14 cars

We good?
A man can dream hehe