A quick google search showed tons of kits. When it comes to door hinges and latches, you seem to get what you pay for. The more expensive kits are usually easier to install, better thought out, and more durable. Here's a sampling, but search google. I'm not sure of either of your expertise level, so I will say please be aware that suicide door install, with or without a kit, is not a beginner job. And if you're able to do it successfully, make sure to install the safety pins on the doors so they can't open at speed.

Door Kit 1
Rocky Hinge
Air Bag It Kits
Thor Bros.
Hagan
Summit Racing


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket