Bulldog KE1702 Keyless Entry Kit
I bought a Bulldog KE1702 keyless entry kit for cheap on ebay (new, opened box) before discovering that my 2003 e250 is pre-wired for keyless entry (just needed to get + program fobs).
If you have a 90s Econoline and want to add keyless entry, this is the way to do it. Super easy to do - others have documented how they did it on this forum. Willing to send to somebody for just shipping cost. Includes original packaging, manual, all wiring harnesses & 2x fobs.