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Mega 2560 R3 + 1pcs RAMPS 1.4 Controller + 5pcs A4988 Stepper Driver Module for 3D Printer kit Reprap MendelPrusa
Package Included:

1 X mega 2560 R3
1 X Ramps 1.4
4 X A4988 module
6648
only...

mostfun home 1.0 Desktop 3D Printer
The MostFun 3D printers use non-closed structure surrounded and retrofit LED lamps.It is suitable for mass consumer use. In the 3D printing process, MostFun ...

Do you have requirements for material?
If not, you needn't buy expensive machines. Some 3D printers under $1000 also can work well.
Such as...

Em..According to your situation, there are so many choices.

http://www.wercan.com/3d-printers-3d-printers-c-286_292_562.html?zenid=m06iispi57ofg8fug48di7bil4
I think all of these can match you...