I would recomend it if like me you have a well cared for (by previous owner) R and want a dry clutch and you can get the bits. My engine had a new crank from you Andy 3k ago, and i have proof of a top end rebuild 2K before the crank was done so it was worth it. It looks ace, sounds awsome as for performance i cant comment yet! Basically i swaped over the boxes, and clutches so the SE i have is becomming an R LOL some may ask why i didnt keep the se, Simple it runs nice but there is NO history. And yes anyone wanting to do it them selfs, and are not very technical like me. Its easier than it looks, Just make sure you take care taking the bolts off and bits out, and again when it all goes back.... The hardest bit was trying to reconnect the water pipe at the back of the casing! pain in the arse.

Problems i had... I snaped a bolt taking the G box out and needed to buy a set of studd/screw removers and a Jubalee clip broke.

Putting the Clutch and G box back i used some thread lock on the oil drive gear bolts, casing bolts, I bought 2 new gaskets (one for thr dry and one for wet) a new Clutch nut (the dry one was shagged) new springs, and i have also got a 2.9mm plate conversion as recomended here and thats it!