ok momies who made their own cloth duapers... im looking at making my own all in one pocket…

ok momies who made their own cloth duapers... im looking at making my own all in one pocket diapers... i also want to use velcro instead of snaps.. any mommies have some tips? hoe many a stash needs? im looking at a stash of 40 that might cost 235 dollars total... is that about ball park or should i look again?