I would change out the condenser first. In fact you can relocate it to the frame by the coil. Save you a lot of frustration if that is the only problem since you have no points experience.
They will swap, but take different spacers. I had years of spacers laying around when I did rhe reverse of what you are doing. I used a 2001 shock while rebuilding an Ohlins.
The Sherco is actually very easy to work on. The trouble can be the mains spin in the cases. The short cure instead of new cases was to dimple up the cases where the bearings sit. That was actually a service memo from Sherco.
With a TY and all posts in twin shock I assumed you were making that better. My Evo I run gas gas 160 springs that I shortened. I have the lightest clutch that I know of that does not slip. I did this after damaging my clutch finger in a furnace fan last year..
Scifi you are better off to pull everything off including clutch arm and clean and lube than to remove springs. New cable and quality lever too. If still not satisfied try to find lighter springs or add small washers under the bolt or trim the springs. Good luck.
Oh don`t be so hard on Honda. They did make a light trials bike once. And we will never see anything as good as the 315 again since they are a green company now.
Funny, most 4t riders like the braking. Otherwise they would buy the 2 stroke. Reality is all 4 strokes are big and heavy. But my son at almost 6 foot 5 loves the 4t the way it is and will be buying a 2018 factory if they don't change it much.
We have probably about 15 4T`s in our club and never heard any complaints of cold stick. (The two stokes for sure) My son`s will slightly do it if it`s been sitting for a month. You might just try a brand change with the oil.
I usally do 450, seems to be that way for a couple of decades. On my '16 I started with Motul which worked great and gave a large slip zone. Currently back with ATF to get thant instant hit for the ups.
When I bought my 2016 250 it came with foldable levers. I removed them after the first ride. Bulky and no feel. If you move the m/c farther down the bars you get more leverage and it is harder to break a lever. S3 digits are what we run.
Our club started doing this for the electric bikes, so they could make it on one set of batteries. But it is cheating as the rider only completes one loop.
Trials riding the beta turns way better and smoother power. And you get a lot with the factory. Trail riding the Montesa. The Beta fits a larger person better.