I am setting up an online store that sells custom computer systems: gaming PCs, home theatre systems and workstations. I am looking for a nice software that could run the site and thats why I am here. I have tested some out, like Magento(too heavyweight), PrestaShop(not what I am looking for), OpenCart(could use if nothing better shows up) and WooCommerce WordPress plugin(best so far, partly because WP is very flexible).
The shop itself would have a lot of custom pages, like different terms, promotions and so on so the system needs to be able to have custom pages while not so many products: probably 4-5 categories with around 3-5 products under each. As this is a computer store, I want my customers to be able to select the parts that they like so having product variables is also a must.
Can anyone with more experience here suggest me something? Does not matter if its premium or not, I just need something to get the job done. I am good with PHP, HTML, CSS and so on so having to write some code myself is not an issue, I need to get the site live in one month though so that is why I am looking for something premade.
Very bad first post asking for something that is probably been discussed for many times but after a quick search, I did not find a thread that falled into what I am looking for. Sorry!
I will start to go over this list and write good and bad sides about each solution to let you know exactly what I’m looking for.
Any help is very appreciated! 
[B]
TL;DR:
Need a software solution for online computer store. Need it to have:
- Customizable products by clients
- Custom page creation(for promotions and such)
- Themeable
- Flexible[/B]