05 Dolphin shore power connection

[JJH3rd]

I'm thinking about installing a surge suppressor/power monitor (Surge Guard or Progressive models (RV Surge Protection) and I also want to address a potential problem with the spike plug/socket at the coach end of the shore power connection. The difficulty I see is the strain that the 90deg angle that happens to the power cable at the plug/socket on the side of the coach. This has resulted in the growing exposure of the 4 wires that make up the connection.

Here's my plan that I'd like you to critique and give me your thoughts:

1 - install a 50V socket in the compartment with the transfer switch in parallel with the external spike socket for shore power
2- install a surge/power conditioner in the compartment between the shore power and the transfer switch. I saw a post on the forum that had a pair of 50A sockets: the surge device on a 50A plug and a 50A socket so that the surge/conditioner could be bypassed if needed
3 - replace the spike plug on the 50A shore power cable with a standard 3 blade and pin plug and reroute the plug point into the compartment where it could be behind a locked door.

There is a real chance that my wife will be using the MH as her 3 or 4 day/week apartment for a short term project (3-6 months) and I really don't want her coming back to the MH to find that a copper thief has made off with our shore power cable. If the endpoint of the power cable, at the MH is not removable then the path of least resistance rule should kick in for the potential thief, plus I get the mechanically less stressful connection and the surge guard as well.

Thoughts?