Quantum sails tuning guide has a good list of changes to the standard boat.
for my boat (#26) I have:
Redone most of the sea hood to have a reasonable halyard cleating setup
Moved the traveler cleats forward so the skip can sit on the beam and hike more
All new standing rigging, including longer forestay and shorter backstay
bought all the required equipment
got a new anchor line to make the required length (old lines can shrink!)
got an angled mast plate
got a longer tiller extension
...
Its a lot.