Add-on ticket sales

Looking for ideas or best practices- we are in the implementation stage and looking for help from current Altru users.

We have our General Admission (set up as a scheduled program because we want to make the tickets date specific). The general admission is a self guided visit using an app to navigate through the tour path. We also offer some guided behind-the-scenes experiences that we charge an additional $10 per person for. We have multiple add-on tours and each runs at specific times during the day so they'll need to be set up as scheduled programs as well. These can only be purchased with a general admission ticket.

Our current system allows us to list all the different ticket types of one check-out page. With Altru we will have a different web form for each of these scheduled programs. I'm worried about the customer experience when purchasing tickets. It seems that customers will have to add general admission and then navigate back to a new ticketing page to add on the other tickets.

What have you all figured out as the best way to do this? I can create a combo ticket that includes multiple items as one price but with several add-on there would be way too many options. And what if someone purchases just general admission and then wants to upgrade/add one of the add-on experiences?