I found an older thread with the same advice:
http://www.talkmorgan.com/ubbthreads.php/ubb/showflat/Number/462631/Searchpage/2/Main/30343/Words/%2Bdipstick/Search/true/dumb-moss-gearbox-question#Post462631
In my case, I have decided that my needle nose pliers is very effective for this purpose.
I did discover that I was "low" and have topped off the gearbox with 80W-90 gear oil.
