Worth buying a Hymer Sunlight and upgrading it?

CW still has some of the old original Sunlights that should be very cheap since the build quality was so abysmal. If one is able to do their own upgrades, they may be worth it.

The Banff is, of course, the same unit, but they have upped their game... fixing most of the worst issues with the Sunlight.

I can't see justification for the price hike, but you would need to be comparing the equipment. Solar? Lithium battery? Underhood generator? Does it have a backup camera? OEM u-connect?