Residential fridge install ?
 

I removed the Norcold, there was pink insulation on both sides, removed that too.

With a resid fridge I don't think I need to put back insulation on the sides?
I'll have a 1/2" space on the sides and top.

what to you think?

Next question is the old roof vent, should I remove it and just seal it over?

Or leave it and seal it on the interior with some insulation

The furnace is below it so I'll add insulation there.

https://www.irv2.com/forums/f54/resid...rv-177993.html
read the link may answer 90% of your questions