Bembo,
There isn't much out there on rubber powered conversions to R/C
Here is a link to someone's site who converted a Guillow's Sop-
with Camel to R/C. It goes to show just how much detail can be
put into these small kits. Check out the Corsair conversion at the
bottom of the homepage:
http://www.mindspring.com/~telemark/sopwith/
Be inventive and check out plans for other P-40s and see how
they run the linkages and other systems.