Jump, you have a few options, but there are some factors that would need to be considered first:
What's your budget? How much horsepower will it have? Do you intend to turbo the motor in the future? How much does you car weigh? How much travel do you have in your suspension? What events are you considering entering? Manual or auto? Is Kevin going to call an early election?
I would suggest nothing less than a 930 porsche, or a G50. However you will need to get a bargain on the standard box to make it affordable. Otherwise a second hand Albins would be the way to go. If you are thinking of an auto you might consider the Fields trans.
There may be some bargains on Race-Dezert at the moment and with the dollar going up that may be a viable option.
Race preped Mendi 4E is $5950.00 USD plus Transport and the 4E 2D is $7700 USD Plus Transport and l am working on getting some more second hand transmissions it seems at the moment no one wants to trade in their old ones.