Anyone replaced a power cord hatch with a SmartPlug inlet?

[Hawkeye Ed]

I flinch every time I pull our 5's power cord out of its round cord hatch, wondering if it's about to snag part of our underseat power center, plumbing, pump or hot water heater. We didn't order the optional removable power cord when we bought our trailer so it's not that easy for us to install a www.smartplug.com inlet.

Our cord hatch is 5+ inches wide: Cord Hatch.jpg

The SmartPlug inlet is about 1 1/2 inches smaller: BM30PW SmartPlug.jpg

Any ideas how to retrofit the SmartPlug inlet and make it look nice? SmartPlug customer service says they have no adapter plates.

Ed