Auto updating cart pricing for a build-it-yourself product

Hey @lachlanjonas97! There currently isn't a way for customers to build a custom product on the platform. You can add a custom product form, but additions to this form will not change the pricing of the overall product. You can look into adding the combinations of products as complex product variants. 

You can also contact our Customer Support team via live chat or email and submit a feature request. Although we can't guarantee feature implementations, all requests are reviewed and we always appreciate the feedback.