There are plenty of low priced options out there, but if you plan to get some real use out of the strobes no name
ebay kits are not the way to go.
You would be much better off to rent a good light kit when you need it until you save up enough.
Can you shoot portraits with speedlights, sure I do it all the time. Can you shoot fashion with speedlights, sure but if you want to make it you will need more than that.
I know if I showed up to a fashion shoot with a bag full of speedlights I would get laughed at.
Speedlights are great for some situations, but they just do not cut it for fashion or commercial production work.
Look into good strobes from a reputable company and you will get many years of use out of them, and if you ever want to sell them you can get a good portion of your money back.