I have the same RV3 in 250cc that I am preparing for some coming Trail riding in Wales and Devon (UK)
for me after 3 decades owning and restoring SWM that would be a first....but I look forward the disk brakes and the front & rear shocks

Please would you let me have the code/reference of your HIFLOFILTRO ....I have an original from 1989 and now self destroying.
Will do some pictures when finished, even if already pictured in this forum as it was Didier bike for a bit. a 1989 model with maybe some non original bits....but what a bike!
10000000000 thanks, Cheers, Philippe.
www.oldknobblies.com