I got this GPS Speedo on Ebay for like 45 bucks, it's a bit slow to start, but accurate and is quick to respond. The odometer has a memory and seems to stay on, trip meter resets every key off cycle.
The fuel gauge is for a boat, I have a small converter to change the Toyota resistance to match the gauge resistance, pretty neat for things other than the standard GM type 0-90 ohms.
I'll have to recut this dash panel, there's a lot of changes I'd like to make based on actually having it in the truck.
I also got these cool barrel filters for my veg oil, now I can filter 25 gallons in just a few minutes to 100 microns.