You can only do the best you can. My MurrFee had acromegaly and did good on insulin for about two years. I just kept increasing his dose. I used a combination of Levemir and N insulins to reduce costs. At the end ye was on over 50 units of insulin twice daily.
What tests were performed to ianose acromegaly and what were the test results. The BG values and doses in your spreadsheet to not really point to acromegaly.