Hi,
I've heard back from Lichfield in which a very kind archivist's assistant fully answered my question plus added a little extra.
BUT - I also did find, for those of us near an LDS library, that the indexes for the Calendar of wills & admons 1651-1860 for this Diocese have been filmed by the LDS, along with the original wills, admons & inventories.
In the Catalogue look under: England Warwick . . . . then Probate indexes . . . then looking for the Diocese of Lichfield records.
Thank you for the helpful advice given by others.
BonnieB