Set up an online store template

Good day!
I have installed Joomla 2.5.8 on my hosting. and a pattern.
What else can I do about it?

The goal is to create a very simple online clothing store.

Task:
adapt the template according to the TK (disabling unnecessary modules, plugins, menu tabs)

make the store function (without online payment system, etc.). The wisdom is simply to send an order to an e-mail.
Replace the Facebook module on Vkontakte.

I can explain how to add/edit products : I am very smart.