One problem I'm facing is the lack of materials I need.
I'm hours away from my house, taking the metro to work.
I only have access to ebay and MAYBE homedept but that's still a walk.

Buying a prebuilt frame for 500-700 dollars is a ripoff in my opinion since they only give you the plastic frame.

I was wondering if it would be a good idea to buy a 50 dollar 3D printing Pen and a bunch of ABS. Using the pen, then I drawout my own frame, and then insert the remaining components (motor, rails, etc) into my drawn frame.
The only big downside I see is that the drawn plastic frames won't be as smooth as the 3D printed ones.