Here is an additional tip that I almost forgot. When you install the new faucet, use the original sink drain. The ones that come with new bathroom faucets are the type for sinks with an overflow drain. These do not work in the stainless sinks in newer Airstreams. The reason that I mention this is that I spent an extra 3 hours removing the old drain, installing the new one, realizing that the new one wouldn't work, uninstalling the new one, and reinstalling the old one twice as it leaked the first time.
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with HAHA
2020 Silverado 2500 (Vivian)