I did this for my sister - and it was a chore. She had started some of it herself, so she knew she wanted nine patches, out of each 'outfit'. Seems like most of them were infant/toddler sizes.
I wish I had known to use stabilizer . . . ugh. But it worked out. I kept a Ton of the clothing detail. I think my blocks ended at 5 inches . . . I kept the functionality of most buttons and snaps. I ended up having to have have bits behind pieces to make my sizing.
It ended up being Huge. Well over king sized. She has never had it quilted - it will be no fun for the poor long-armer, though it did end up looking alright.