It would be an interesting question to answer and with potential interest for many of us here.
Sadly I do not have easy access to the LDS microfilms. In fact it was for this reason that I started the search for alternatives.
If anyone does have easy access and would like a copy of the will I have placed it already on my website (a non-genealogical one) for download - I will happily send the URL to anyone interested.
It is an 807K pdf document and thus quite a large download if you are on dial-up access.
If no one fancies the large download then I would be happy to send essential details to verify if it is the same person.
It is not a relative of mine but seems to tie in to the Christians:Ballure, alluded to in the Radcliffes' "History of Kirk Maughold" page 242-244. (I say "seems" as the will is VERY difficult reading)
Again if those people are of interest to anyone, then I have some of their certificates and history, some of it going back to early 18th Century.
Do let me know if I can help.
Paul