How to limit restoration of IAP?

I have a series of IAPs that look like this:

A < B < C < D ...

So that D includes C with extra stuff, etc... ...and so downwards. To simplify the distribution of data, I simply build one sqlite.db file for A, one for B, etc...

I can design the GUI so that the user does not buy duplicates (for example, if he buys C, it would be smart enough not to buy A and B).

However, my question is, on restoration, is there a way I can limit the downloads so if someone bought A early on and then D later, and wipes their iPhone, I can just restore D (since that sqlite.db file includes A, B, C already) and save bandwidth?

I'm asking because these files are big: on the order of 40-50MBs.