How to setup Gnucash as a business software?

[Allan Mwenda]

Hey guys and gals,I just installed the software recently and am still
learning my way around it so please bare with me. I am planning to start a
business which is a store and i would like to have good accounting systems
from the get go,and also be professional in my documentation. I chose
Gnucash because it looks like it can do what i need,without having to
license anything at a high fee.
So what I would like to be able to do is hopefully
Be able to accept purchase orders from corporate clients,and generate
quotations,statements,invoices,delivery notes and such other documentation
of formal transactions along the way.
Keep a payroll for the 4 of us,to keep out of company money and instead
earn salaries.
Purchase stock in USD in South Africa but sell it in KSH in Kenya
Follow spending in the office,perhaps a petty cash system.
Be able to calculate selling price and profit after importing goods,and
also be able to set discounts on the sale price when there is a
promotion,without it being a loss price.
Do my taxes off the software,or at least generate the figures i need
Keep the required level of books for a limited company,as that is what i
will set up.
Probably keep accounts of corporate clients and my distributors,with
history and such,for reference
A way to keep track of company debt and loans

I am not an accountant,but I believe if I figure out where everything goes
it's just math in the end,and I learn fairly quickly.Is any of this
possible or am I asking too much? Thank you.