The homemade might be the cheapest way to go if you're up to it. Or, you should be able to get a 2000 pulse inline adapter from Stealth Conversions (Jags that Run) in the $100 range. This would give you the VSS info you need, but you can't run the DRAC with it, so I'm not sure if you'll be able to get the cruise to work. Another alternative would be to swap the mechanical stuff for electronic, then you could run a DRAC and have cruise output. Or you could try to adapt the '89 gauge cluster and use it's output for the VSS and cruise.