Product eligibility logic?

Hi folks, 

I have a WP site that I'm rebuilding in SQSP...  It's an vehicle extended warranty site.  The old WP site collects lead info (contact form), but does not quote pricing or allow for direct purchase on the site -  it's a very consultative approach we have (phone/email contact).    

I want to rebuild in SQSP and provide quotes and options to buy online. 

There are a lot of requirements for product eligibility... (model of vehicle, age of vehicle, mileage on vehicle)... there are many 'if this, than that' kind of logic to narrow the customer to the right set of products to view / be quoted on. 

Are there such complex functions in setting up a shop?  I imagine there will need to be a flowchart of sorts (if yes, than..., if no, than...) ... 

Thank you in advance for your insight and/or links to useful articles.  : )