2002/2003 GMC 3500 Savana cutaway/shortbus

[Lilypad]

Hello! I'm so grateful to have found this forum. I apologize in advance for the insanely long post.

OMG apparently everything I typed just disappeared!

[Lilypad]

Hello! I'm so grateful to have found this forum. I apologize in advance for the insanely long post.

OMG apparently everything I typed just disappeared!

[Lilypad]

Ok let me try to sum up. Short bus converted to a skoolie/tiny home on wheels.

Builder removed rear heater and didn't reloop the system properly. Had my brother reloop it with a ujoint. No more leak that I can see from the coolant but there was still no heat. My brother, being himself, then tried to take the doghouse and everything apart. He put it back together without putting in the new thermostats I bought and left the old ones out. He also left out this wire he swears he had no idea where it came from...������*♀️ And now my speedometer and gear panel isn't working but all other gauges are.

I've spoken to 2 mechanics in my area (Webster MA/Thompson CT area) and they done want to work on it. My problem is aside from my brother taking advantage of me for $1500 is that I am supposed to be in AZ by Dec 23rd! I know a great diesel mechanic that will help there but idk if it's safe to some now! Not to mention it's unsettling not having a speedometer.

Thank you for any ideas/advice you may have to offer it's greatly appreciated!