I’m not sure how much good this will do you, but… I just finished listening to a talk Fr. Calvin Goodwin of the FSSP gave the the nuns at EWTN. It topic was the old Mass, and it was recorded in June of 2008. He had some really fascinating information about the antiquity of the old Mass. For example, they have found pieces of missals dating to the 200’s. He said the Introit, Gradual, Payers, etc. that they have found lined up exactly with what is in the missal today for that particular Sunday. So, for example, the Introit for the 17th Sunday after Pentecost is the same Introit that is used today for the 17th Sunday after Pentecost. There’s a lot of other really interesting information on those CD’s.
Something else he said is that he visited Msgr. Clause Gamber, who wrote the famous book Reform of the Roman Rite. He said while he was there, Msgr. Gamber took him to the museum he has at his house. In that museum was a missal that St. Bonafice brought with him to England in the 700’s. He said that missal missal is complete and is identical to the one he uses. He said it even had the little crosses, just like the missal today has; and it was all written by hand.
So, my only suggestion is to see if you can locate a scanned copy of that missal online. Maybe you can do a search for “the missal St. Boniface brough to England”. If you manage to locate it, let us know.