"About the only thing left we'd like to do is replace the gold shower enclosure with brushed nickel."
We just did that, you do not have to have OMC do it. We went to the glass place in our home town and they came, measured, and a few weeks later installed a new enclosure the same exact measurements as the old one. We did switch the way the door swung open. I saved $150 by removing the old one and they hauled it off for free.
When you replace all the fixtures, if you have a Moentrol valve in the shower, it is a very simple thing to just replace the surrounds, you do not have to replace the entire valve. You can get parts at the local bog box store or do like we did and go to a plumbing supply house. That way you can match the toilet paper holder, towel bars etc.
2002 Country Coach Intrigue