The CB1100R always has some clutch rattle usually nothing to worry about. There are a few modifications that have been tried. One of our members has produced a kit to replace the rubbers in the basket and I’ve seen on another site a replacement clutch pusher for the 1100F and RD models, however I’ve not tried either so could not comment.
I believe it is possible to get a cam chain with a soft link but again something I’ve not tried.
You mention Mallory in July. Are you planning to attend the Festival 1000 bikes as a club member? We have 4 members going on the track on Saturday 7th and many other members will be there Saturday and/or Sunday in the “Avenue of bikes”. This is always a good weekend with great entertainment on Saturday evening. If you would like to come and display your bike the club have limited free ticket available. Priority will be given to those displaying CB1100R’s. Please let me know.