As far as the air cleaner "T" bracket concerns go, I've taken some metal stock, thicker than what the "T" bracket is made from, cut, trimmed to fit the bracket on both ends of it, running about three inches the length, mig welded them on, and on the part that bolts down low on the exhaust manifold, welded in a large washer. These particular brackets were modified with new brackets from an aftermarket manufacturer that was making them with heavier gauge stock than oem. I know they were heavier gauge because I also had a new genuine MB bracket to compare. I measured them both with calipers. My first go at replacing one of these brackets was with an unmodified aftermarket bracket. It did last longer than the oem bracket yet it it still failed all too soon, at which point I decided I was going to get serious about it. Haven't broken another one since on either of my 617's since, and I got a couple done for a couple of my friends too, and they haven't had any fail them either. It's been a few years now, yet still every so often I have to replace one of those rubber mounts. I had at least one or two more welded up for spares just in case, haven't needed them yet.
I did have one other alternate plan had this one failed, I sourced a 1985 California air cleaner set-up which is mounted remotely and won't be shaken by the engine ever! I don't believe I'll be needing it now! Anyone interested in buying it?
As far as the glove box door issue goes, so far I've been able to deal with the latch mechanics just not found a satisfactory solution for the broken out plastic around the holes for the screws for the the hinges!
IF Anyone ever comes up with a good solution for That, Please Let Me Know! I would like to be the first one in line for That!