Help with Opencart

I want to use the opencart default demo (for now)

I have got so far
http://www.e4e1915816197df3813e33e5c-11941.sites.k-hosting.co.uk


The main help I need is with price configuration, please
see page 2. Ie order business cards, qty is 100/250/500 etc
plus a paper choice in some products.
Also file uploader

I will need one product set up to my specs and a video showing me
how to do it.


Other tasks after that

Install gallery, end result like this
https://www.afterhourscreativestudio.com/portfolio
So click on picture and see a little info

configure paypal pro
deal with redirects from wordpress site www.pressola.co.uk
I am trying to replace website asap

I will use a designer api called pitchprint that also needs to be configured
Very easy, it may help with file uploader?