Finally had the opportunity to put the R-25 on a scale today.
It weighed 9, 020 pounds. That's with 60 - 65 gallons of diesel, a full water tank, less than two gallons in the waste tank, and with a 70 pound dinghy on board. Includes all of our normal cruising gear except for some clothes, some additional bottled water and other beverages and food. The fridge is empty.
Add another 100 pounds of diesel plus a couple of hundred pounds for all the rest, it would nominally top out about 9,300 pounds for Mood Magic and trailer. This is heavier than I was estimating but well within what I can easily tow.
As I said in an earlier post, it's big and heavy but it tows pretty well.
Hope that helps.