I have upgraded the lights in mine by fitting an led self adhesive strip above the lockers on each side.I used cool white with a remote control on/off and dimmer switch,that way you can adjust the brightness to suit,the cool white at maximum are quite bright so I usually dim them slightly.I find the lighting a bit basic on the older Hymers so it's a good upgrade,it's also fairly cheap and easy to do.
Sounds good that, where did you get the led self adhesive strip and the remote control on/off and dimmer switch,