No. It costs about the same as the POS rig that you were originally considering. This is the only solution in that price range that will give you acceptable quality for the money invested.
If you want a full shoulder rig, be prepared to save up for something that isn't a total waste of money:
Base shoulder rig (no offset): $130
Follow focus: $120
Focus gears: $30-45/ea
Mattebox: $300
Counterweights: $160
Field monitor: $250-800, or
EVF: $800+
And that's the budget version.
"Affordable" can mean a lot of things. In the grand scheme of professional lighting, Aputure Amaran LED panels are very affordable at $160-275 each, considering that high-end lighting fixtures for TV and film can go from $500 each up to several thousand.
Your stated budget of $50 leaves you with few options that will give you good lighting. Honestly, anything you spend that money on as far as purchasing is money wasted in a very short-term solution. For $50, whether you get worklights or venture into sfoster's DIY cardboard box solution, you'll quickly find that you may get bright and wide coverage, but at the expense of color rendering, even lighting distribution, and ease of control.
Perhaps you might look to a local rental house. A small, functional lighting kit may run as low as $75/day. You're spending that money either way, so it really comes down to this: would you rather spend it on a cheap solution that you're just gong to have to replace in the not-so-distant future, or spend that money on renting something better? Either way, it's an expenditure on this project that has no income to offset it. So what's the best way to spend it for this project?