Check out the Centerline site...16,17,18 & 20" all in 8" widths in the "Tomahawk" series. Rotary forged, strong & light. Slightly more neg. offset than stock (about an inch).
I ordered the Toyota 6 holers, but ck. with them to be sure the c. bore is large enough.
Also if you order from them, make sure to indicate that you need 4 deep c. caps.
Ck. my gallery for pic's.