Looks awesome. For those unfamiliar with fittings, mounts and hoses--do you have a full parts list? Which Zarges box is that?
The box is a Zarges K-470 series 40678 - exact same size as a 60L AluBox.
Mounting inside the box is with simple stainless steel hardware as shown.
For plumbing, the key to the QuickHot is adapting the Euro threads for the propane and water to US. Here’s what I used, available on Amazon:
Then I used some 1/2 street elbows (brass) to orient the lines out of the box. Make sure you use Teflon tape rated for propane use (see yellow tape). Gas line and regulator are standard 3/8 low pressure BBQ grill stuff.
The 12v pump is a Pentair Shurflo sourced from Toboa Energy in WI, the website and model number is visible in the photo. It’s 1.3 GPM and 60 PSI which is ideal. I just added a longer lead with a 12v cigarette plug.