Buying bundled products

Hi team!
I have a business in which I buy products in bundles. Ex, a bundle of phones from different brands with different costs according to brand. If in the bundle there are 10 phones from brand A with the cost of 1500 each and 25 phones of Brand B with a cost of 100 each, I would have an average cost of 500 for total phones in the bundle. Which is not accurate, because if I sold a Brand A phone for 1600, the profit would reflect as 1100 when in reality it is 100.
Is there a way to:
a, Split these items in inventory once bought
b, Manually input cost and sales price.

I’m using the desktop version

Create separate inventory items for each brand

@AJD is right. You are not purchasing a bundle, storing a bundle, or selling a bundle. You are buying individual phones in quantities larger than 1.