Customise Agile Bundle Builder

This is a repetitive project with the task below required for other bundles subsequently. On our Shopify website [login to view URL], we use the Bundle Builder app to offer several product bundles to customers. Once a customer customises a bundle, they get the option to Add to Cart, after which they can check out. As a part of the bundle we have between 4-7 products ..for example see link [login to view URL] We would like to add products to this and other bundles that have customisation options within the product. For example a t shirt where you can select colour, pattern and tag line..or a name Plaque where one can select a motif and also the pattern along with a customised name (see file attached) ..these are all done on an app called Advance Product Option. When we place such a product as a part of the bundle it does not show the customisation options. Thats the limitation of Bundle Builder. We would like to have an arrangement where the bundle page opens like normal and of the 5-7 products there will be 1-2 products when selected will lead to a small pop up window where the customisation options of Advanced Product options can be selected and then pop up window can be closed by the client , after which the other parts of the bundle can be selected and then added to cart. Please bid only if you have experience with customising Shopify plugins.