Elwood, you can get by with shimming bridge feet if done correctly, in fact, I have some shims I'll be glad to send you. They are actually the pieces leftover whenever a new bridge is cut... I save them just for this reason. (this way, the grain is already oriented the right direction, and they are roughly the right size) Just hit my email addy here if you need some.
I use industrial CA glue for sticking the shims on the feet. After which, a couple passes over the belt sander, and some careful trimming with a Dremel tool will flush everything up.
FWIW - I have made new bridges, but it's waaaay more trouble than it's worth. If you decide to go that route, you can buy a new bridge blank for $35, give or take.
Glad to help!