Hi,
I have good experience in e-commerce platforms and I must say your target of getting it up and running in 149 is not realistic. It will cost you atleast 3-4 times this price.
Your easiest and cheapest option could be to get a domain and hosting of Marketplace/Opencart/etc from the provider and run your platform on that - if it lifts off, you can then decide to spend in improving UI/etc.
If you would like to work with me then it will cost around 800CAD and I can deliver within 10days.
Rgeards,
Rahul.