Well, I think I managed to find a way of keeping in the Han and Kylo confrontation, and resolving it in a way that doesn’t make Chewie look like an unprovoked trigger-happy dick. All it took was taking one shot from earlier in the scene with the stormtrooper about to open fire on Han, thus provoking Chewie into firing to save his friend.
So now that bumps the run time up to 1 hour, 30 minutes.
I like the work I did in the first version though, so when the times comes to release this, I will be giving people who wish to see it the choice of the two versions.