Regarding the plastic posts in the gauge cluster surround:
I fixed/reinforced mine by sliding a notched piece of rigid copper tubing over the posts, then shaving off the raised surfaces on the switches so that they mount correctly. I've tried abusing them since, and so far they've held up great
. I did mine pretty quick, but I'm sure you'll be more meticulous than I have and do a better job. Finally fixed that damn loose turn signal switch!