rent the proper tool.
as far as how long to wait rule of thumb im told is double the 1 week rule.
youll be dealing with a harder clear and itll make for a better job the longer you wait.
heck I painted my car and waited 2 1/2 weeks to wetsand and buff.
heres a pic of the result:
i did BC/CC as you did.
then after about 3 months wax it. (gives paint enough time to properly degas)
paint will be super hard by then.
i suggest glazing aswell soon after