u sound like u have done some research, Thats good

But b ready for some real eye openers.

Heat will be a major factor.

Listen to these guys who r giving u advice, It will save u money and time in the long run. And for what it is worth,,,Keep this between u and ur mum only.

Do not trust anyone who has nothing to lose, even ur best friend will tell someone sooner than later and so on and so one.

B careful how much u purchase online in a short period.

The biggest hurdle that u should face first is Saftey and Security.

P.s I dont think ur r going to have enough power with only 3 15amp outlets.

Cheers and good luck