I have a new still in the box Acewell 7859 digital dash. Although photograph shows KM/H it does MPH. It is perfect for your Locost build. It retails new for $309.00. Will take $275. You can call or text 513.889.8238.
Speedometer displays MPH or Km/h with recall of maximum speed
Bar tachometer with option for either 500-10,000 RPM or 1,000-20,000 RPM display with recall of maximum RPM
Programmable shift light
Odometer displays 0-999.99 miles or kilometers
2 trip meters that display 0-999.99 miles or kilometers each
Clock with option to display either 12 or 24 hours clock
Temperature meter capable of displaying Farenheit or Celcius with recall of maximum temperature
Programmable temperature warning lights
Fuel Gauge (bar style)
Digital display gear indicator that displays up to 8 gears (N, P, R, H, L, 1, 2,...
Battery Meter that displays 8.0 - 18.0 Volts
Hour Meter to record engine running time
Programmable maintenance reminder
Lap timer that is capable of recording up to 99 laps - includes remote to start lap timer
Distance timer that is capable of timing 1/4 mile
Accelerator timer (0-60 MPH)
Deceleration timer (60-0 MPH)
Complete set of indicator lights including turn signals, lights (on and high beam indicator), low battery warning and more, oil warning.
Backlight can be switched with sidelights as per IVA / MSVA / MOT requirements
Warning lamps meet requirements of IVA / MSVA / MOT test
4x4 symbol can be switched on when 4 wheel or diff-lock drive selected, switched off by default and not visible
Compatible with both car and motorcycle engined vehicles
Speed input can connect to included magnet/reed switch sensor or optional cable drive adaptor or directly to many speed sensors fitted to automotive gearboxes
Gear indicator calculates gear by comparing speed and RPM on manual gearbox cars, so no additional sensors are required
100% water resistant so can be fitted in beach buggies without worrying about rain damage
Includes RPM sensing wire, speed sensor, temperature sensor, and generic wiring harness
Voltage warning lamp can be configured for the voltages to come on and off to suit any vehicle
Programmable Fuel Gauge which can be set for 10-990 ohms resistance for both full and empty so that it can connect to almost any sender.
Size: 6-7/8" x 4" x 1-1/4" or 170mm x 100.5mm x 30mm
Includes:
1 x Speed sensor (and magnet if needed for sensor)
2 x Temperature sensors.
ACE-IHY mounting bracket
1 x Set of cables & fitting instructions
I am not sure how to post a photograph, but here is a link to a photo of one.
https://www.viperraceproducts.com/store/Acewell-7859-Digital-Dash-p93834462