just read your post and wondered how you made out.my rear view is also a little loose.i remember reading a while ago that there is no way to tighten it up and yes they're damn expen$ive.let me now what kind of success you have.good luck!
'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'85 mustang gt(gone-but not forgotten)