I have 36 Alpacas & 4 sheep that drop, so 40 in total. Between at least 2 collections/day & 1 or 2 in the middle of the night..my 1st collection this morning gave me the last of the cream that I will need. If u actually want any of the items..I'd say keep truckin & buy what/when u can. U need a lot, but it's not nearly as bad as it seems at 1st Good luck!!
Edit: just wanted to mention..u only have about 3.5 times what u've already done left yet 2 do & we're only just starting day 5, so realistically if u keep on track & don't go any faster..u should still just make it. Therefore any additional Alpacas will just give u a little leeway & you should have no problem finishing!! Hope that helps!