IOS - purchasing apps for dynamic prices and products

My App displays dynamic products and prices. The user adds them to the cart and pays. Some products are now digital (used in the app) after being purchased by a user who can download a PDF file or watch a video. For payment, I used Braintree payment gateway. I submitted my app, but Apple dropped the mention of IN App Purchase as it relates to digital goods. Now I have chosen a solution, but not sure if it is possible or not, and in accordance with Apple's review guidelines.

How does my app have dynamic product and prices

So let's say I have to pay $ 147 I created 5 consumable IAPs at $ 100, $ 40, $ 5, $ 2, $ 10 in itunes connect Now when paying, I ask for all the consumable IAPs I have configured and I show the user the individual payment options $ 147 and a request for an IAP payment ($ 100, $ 40, $ 5, $ 2) for a total of $ 147 at a time. My limitation is that I only want to have one option to buy a dynamic price, and creating a wallet balance is not applicable in my case.

So please help me as I want to make sure my solution follows Apple guidelines and is programmatically doable before implementation. Any suggestion would be great. Thanks in advance!