@Pepsi

The thought did cross my mind about 23.533.785 times.

BUT

2nd WR forks, from Yahama or KTM, are a rather scarce and I failed to find one that I could actually examine. Buying one "blind" from fleabay is too much of a gamble for my taste.
The rest of the required conversion (machining bits and pieces, brakes, etc) was also something rather expensive.
As for "similar money or less"... my repairs of the fork require:
- 2 fork tubes = 330 EUR
- fork oil
- fork seals, if needs be
- wheel axel (bent) = 30 EUR
... so under 450EUR, by all means.
No way could I do a full fork swap in the vicinity of that sum.