Hello Didier,
I think it was a good decision to get it repaired. It still seems to be the cheapest solution even if it's hard to pay just to get where you were before it failed. I also have an R-D1 which worked without problems so far (knock on wood..) but nevertheless from time to time I think about buying a film RF (which most likely would be the Ikon). But then I had to buy a scanner and spend a lot of money for the rolls, not to mention the time/cost for developing, scanning, archiving etc. OK, I could probably live with that, but summing up the costs pushes me in a region where an M8 it is not sooo far away because I'd buy a Nikon scanner with the magazine holder, at least 1500 EUR 🙁 .
But what prevents me from going back to film is being able to choose ISO with the R-D1 whenever I like or when it's necessary. And I think the high ISO qualities of the Epson are pretty good. With film I had to change rolls, which I really don't like to do.
So most of the time listening to reason tells me "stick with the R-D1, perhaps get a second one as a backup". In 2 or 3 years maybe we have a (better) digital RF alternative. If not, film as a resort is perhaps still there. If not perhaps some kind of ultra expensive Mx waits. And if not, well...
PS:
Your PAW is impressive. Seems you've found the right tool for your style. I'd say don't change it.