Several Products To Make 1 New Product

[f8dev]

Confusing as the title may be but I have an issue I can't quite work out the best way to achieve the end result, I'll try and explain

 

Product A is made up of 8 parts(B,C,D,E,F,G,H,I).

 

Product A can be bought whole only if there is at least 1 of each part available,

Each part can be bought individually too.

 

If we have 2 of each part a customer could buy 2 x Product A or 2 of any of the parts. If they bought 1 x Product A the stock would available would show

 

Product A 1 in stock

Products B - I 1 in stock

 

I need to find a way of creating a product from other products and the stock reflect this