In my opinion, these are the very best pinball links on the web...

Mike Saunders' Indiana Jones Page
Everything you ever wanted to know about but couldn't find it here.

PinGizmos
Sells enhancement kits for your including Backbox Jackpot Lights and Lost Plastic Light Kit.

Garrett Lee's Indiana Jones Shop Out Page
Extremely detailed account of a complete overhaul and lots more useful stuff.

Mike H's Indiana Jones Shop Out Page
Pictures of Mike's Shop-out using Garrett Lee's instructions.