mate - sorry - but why do you want a monkey?

monkeys live for a really long time and for most of that time they won't be fun, cute or cuddly - having a monkey is like having an extremely energetic and agile 3 year old around - they will be totally dependent and require constant supervision - you won't be able to go out in the evening and putting them in a cage is the equivalent to putting them in jail - and i haven't even mentioned shit - they will likely be frustrated and angry that you have them cooped up in your house and they could become violent.

don't get me wrong - i think it's cool that you have an interest in monkeys- you should look into working for an organisation such as a sanctuary or zoo - but wanting to own a monkey because right now you think that they are cool, is not cool.