Rochey wrote:I agree, but I can't do jack sh*t without documentation.
I'm ready to do the work. Just need the pdf's
Actually, you can with a bit of searching the forums, and just digging into it... get up close and personal with it. A lot of the information that is on this forum can be useful to you - it may not be specific to your model, but a lot of it will cross over with just a little care & thought.
a set of metric hex drivers, a philips screwdriver, a multimeter and some solid research can go a long ways in achieving your desired goals. Dont be afraid of just digging into it - it wont bite you.
we bought a used SD4 just over a month ago - basically knew nothing about it, and trying to find info on the Solidoodle website for it was an exercise in frustration (TONS of broken links!). Found more information here than anywhere else, so joined up and started asking questions when we couldnt find answers to a specific issue thru the search function.
We knew that buying used would be a challenge, but hey, we like a challenge! 
Went from putting out so-so prints (in the beginning we thought they were pretty good) to pretty will tuned/refined prints basically just by reading and trying suggested things in just a couple of weeks...
Now the USB connection is dysfunctional on the printerboard - tried fixing it (hardwiring the cable directly to the board) and was semi-succesful, but it continues to be an issue, so will be upgrading the board probably this weekend to something much more robust - and all with just the help from the good people here.
So, Welcome to the world of sub-$1000 3D printers! get ready to get your feet wet, your hands dirty, and expand your mind - cause it is a journey!
oh, and it doesnt really matter how much they tout it as being "plug & play" - there is ALWAYS room for improvement! (especially so at this price point)
SD4 with Lawsy carriages, Rumba board, & new 12v PSU, E3D v6, mirror bed plate, X motor fan.
Stock SD4
Prusa i3 kit, spring loaded extruder upgrade, Y axis belt tensioner