Help Just purchased 69 Truck

[69c20truck]

Hello, I just purchased a 69 C20 pick up truck. $500 has what appears so sound like a good running 350 and 350 tranny. BM floor shift, Carter Carb, HEI, etc.. needs a few minor pieces This is a first time purchasing a truck and the owner let it go so cheap because it hasnt been registered for about 5 years. I noticed on the title that it is registered as a commercial vehicle and looks like the fees are sky high.. Does anyone know if I can change the registration to register it as a non- Commercial vehicle? Does look like the truck was ever used as a commercial vehicle? Im in california and was looking at the DMV website and makes mention that the GVW. must be 10000 lbs in order for it to be deemed commercial. Does anybody know the GVW of the truck. I dont plan on attaching a trailer on it. I just bought it to play with it a bit and use it for hardware trips I just hope I didnt get into a big mess with registering etc. Any help would be greatly appreciated