Damn! I've got to do mine too...got the prescribed loctite from bmw...but the guys at the dealer use Permatex Ultra Gray...as I'm sure you know they don't make the gasket anymore.
I was also planning on doing all the seals. And, if you haven't replaced any of the bushings, now would be the easiest it gets for you...the problematic one seems to be the rear diff bushing...thought to be the cause of clunking when engaging 1st and R.