Email reply?

I am trying to send a formal answer to an email however I am not sure about my vocabulary and grammar. I would appreciate if you could help. Thank you.

If that's the case, let’s proceed with the new version, we are okay with that since the old version will take a little longer to populate. However, please take note that we do have character limitation in the spreadsheet. Please find the below character limitation so that you can provide the information within the limit. And also please confirm the information delivery that whether it’s going to be batch by batch or one-shot delivery?

Or the last line: And also how about the delivery? Are we expecting to be batch by batch or one-shot? please confirm.