Do I want to? no.

Will I if someone twists my arm.....yes, reluctantly.

Guage installation, is like car stereo installation, no one expects to pay for the amount of time it takes to do it properly when they perceive it to be a DIY type of job.

It would take at least 4 hours to do a nice job of it.

If someone would like to DIY I can do the only technical part (drill and tap the dump pipe) and they can carry out the rest themselves.