This can still be done with QuickFile - you would just create one client and one supplier. This is a common scenario with things like shop income (online or bricks and mortar) and fuel expenses etc. You can still attach the receipts and invoices too. As an example, these two guides may be of interest:
The important thing would be to ensure you have the documents to evidence the income and expenditure should HMRC query it.
Regarding entering historic data, this is obviously a personal choice, but it’s worth noting that the subscription for QuickFile is based on entries created within a rolling 12 month period. What this may mean is the historic data may push you into the L or XL sizing categories, meaning you’d require a subscription.