If you choose to go with QBO, you will need the most expensive, QBO+, so that you have inventory.

a non partisan comparison of QBO vs QB desktop
http://onsale-apparel.com/Rustler/qbo-or-qbdt

Things you buy new and stock to sell are inventory

Things you buy in bulk and may sell and or use, are […]

Resolution for 'as separate inventory items issue: 'Sales Tracking – Am I overcomplicating it?' available: Yes.

The as separate inventory items issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the as separate inventory items issue yourself by looking for a resolution described in the article. If it is a complex as separate inventory items issue or you are unable to solve the issue, you may contact us by clicking here or by using other as separate inventory items support options.

For more information about resolving issues related to as separate inventory items in Quickbooks/QBO or to get support for the issue 'Sales Tracking – Am I overcomplicating it?', click the link below: