I'm about 85kgs and have changed the front springs to 0.95 springs and they feel so much better after a tuneup. (i felt jittering on the front previously at high speeds on the stock springs. Nv give me any confidence at all).
Just springs upgrades should suffice as the front forks are fully adjustable (which is basically a front cart.)
If you are getting the ohlins rear. Please get it with a correct weighted spring. Ohlins does not ask for any rider weight (at least in my country) and the correct spring costs an extra $3-$400.
Hope this helps with your decision.