Hello @BrianBPH,
As of the moment, there isn't an integrated way to let the Maximum number you can build from the quantity on hand field show up on your report. Because this field is not part of the source or target data of your transaction which will be the basis of reporting. You can read this article to learn more: Targets vs. Sources overview.
With this, you can consider reviewing the data you need on the said field when building your assembly item.
Lastly, I've also included this helpful article for ideas about how you can remove or add columns on your reports and filter it with certain names you need: Customize reports in QuickBooks Desktop.
Stay safe and comment below or post again if you have any other questions. I'll be here to lend a hand.