Unfortunately most commercial server companies are not going to change ini settings for individual site preferences. Changing ini settings is pretty much a superficial answer. Sure fine for your own test servers, trying going to a live commercial server and asking the Admins to change any of the ini files.

We are going to investigate php's ability to read the ini variables and set those at limits with obvious error warnings prior to processing.

Thanks for the answer though.

Issue has been identified, we are now working around the problem as the software once completed is going to be in the public domain.