The key are only available from a Dealer. They also have "chips" in them and need programmed.
Front pass side of the engine.
link belowlink below
lkq.com lkq.com
Replacement keys are available in-store or online for a small fee.
A lock smith, or a Housing/Hardware store
The light fuse for a 2007 Dodge Sprinter is located between the lower portion of the left side of the dashboard. One can find that the fuse is easiest removed with a small crimp tool that should be fixed inside of all fuse box casings.
The average cost of a Dodge Ram windshield replacement is about $225. For your area you can Google windshield replacement cost etc to find a local shop with a specific amount you would pay.
There aren't too many options besides a Dodge dealer.
Junkyard
You can find the caravan overhead replacement doors from Caravan Plus, Jayco and Dodge Grand Caravan. Sandpalm doors and Coachman Caravans also have overhead replacement doors available
You can find one at almost any auto salvage yard.
From what I'm told, they are only available from Dodge at the OEM price of nearly 400$. I'm looking for replacement fuel rails for my 96 which are the same as yours and I have yet to find an aftermarket company that makes a bolt on street legal replacement.