I have discover your youtube channel 2 week ago. I love what you do !
I have see that you really love 3D printing in many of your episode.
I have found this DIY 3D printer kit ($200):
Q3 3D Printers - Quality | Reliability | Speed | Always Open Source
I have also see many people doing some 3D parts upgrade for this printer over the internet.
Theres my idea:
Does it's possible to do your own upgrade with this printer kit?
The cheapest "better" 3D printer as possible.
P.S. Sorry for my english, i'm french...