Price Conditions

Hello. I am using two different plugins to achieve this: I want a customer to be able to Select from a list of flowers their preferred ones, then pick a color theme, and at last pick their budget. I know there is a min value and max value for the price which is brilliant, however I’m in great need of help to implement something more custom, I want a condition on the price that If the price is below 20 then to disable certain flowers from the list, e.g Roses, Lily. If the price is higher than 30 then enable all the check boxes.
All I can think of is if the plugin can check for these values and if its out of range then add a disabled tag to the check boxes on that product page. This is just what I can think of , anyone with some ideas please help. My other plugin that I use for creating the check boxes is PPOM.

>> disabled tag
<input type=”checkbox” id=”chrysanthemum” name=”ppom[fields][include_flowers][]” class=”ppom-check-input” value=”Chrysanthemum” data-optionid=”chrysanthemum” data-price=”null” data-label=”Chrysanthemum” data-title=”Include Flowers” data-onetime=”on” data-taxable=”” data-without_tax=”” data-data_name=”include_flowers” disabled=””>

The page I need help with: [log in to see the link]