Woocommerce, gravity forms, variable products/ upgrades

I have the latest version of woocommerce/ gravity forms and other product add-ons available, so I can use other plugins if it will solve my problems.

I have a bunch of photography products which have multiple sizes. So just about all my products are in the variation format.

But most of my products also have upgrades, such as better paper, or frames etc.

So I found the gravity forms/ woo commerce add on which would be great if the upgrades were all one price. But the upgrade options are also variable depending on the size.

Example, an acrylic 7×7 would sell for $50, metallic paper upgrades, Thicker acrylic, or polish shine would each be $12

While a 30 x 40 may be $800 with upgrades each being $50

So in Gravity forms, I tried creating the product, options, and totals.

At first, I tried to make one option with each of the print sizes in a drop down, with each variable option appear dynamically based on that selection.

But this form would not appear on the product page unless a variation was selected. I don’t really want to remove variations totally, because I want each to have a unique sku and cost of goods.

So, I need to know how to tie the selected variation in the product page, to the form, so that the appropriate option box is displayed. In other words, a dynamic display, except that the determining value comes from the variation selection instead of the form option.

Alternatively, one option box with calculated prices = $variation_price*.1
would make things simpler.

Does WC/GF plugin allow for the variation prices to be pulled to use in calculations or dynamic content?