Adding a product option on product page that's not a variant?

Hi,

I'm building a site where my clients can place an order for photos/video of their products. For example, a photo of a simple ring:

I am offering 3 different angles it can be photographed at. I also wish to give them the choice if they want us to color convert the gold colors for an up-charge. I also wish to give them another option of an up-charge for providing what's called a clipping path (so images can be superimposed on any background). 

Now, I know I can do this by offering multiple variants, but this becomes quite ridiculous in the drop down box, and an elegant solution is to provide a checkbox:

Example:

Select the angle you want your photo shot at:
Angle A
Angle B
Angle C

Do you want us to convert to all 3 gold colours?   YES/NO checkbox 

Do you want to include a clipping path? YES/NO checkbox

Currently implemented solution that's a hot ugly mess: 
Select the angle you want your photo shot at:
Angle A
Angle A with clipping path
Angle A with 3 colors
Angle A with 3 colors and clipping path
Angle B
Angle B with clipping path
Angle B with 3 colors
Angle B with 3 colors and clipping path
Angle C
Angle C with clipping path
Angle C with 3 colors
Angle C with 3 colors and clipping path

I don't simply write "Angle A" but have a description that's a few words long, so imagine how long and intimidating the drop down looks like? 

Has anyone found a solution to this? Or Squarespace simply cannot do this? UI is very important in completing a sale and making it friendly for my clients to use. 

Thanks! 
Vad