Need advice on motors for Kossel build (no replies)

Hello!

I'm about to buy motors. I have a RAMPS 1.4 with A4988. My research says:

Nema 17
1 amp-2 amps
60-80 oz hold torque.

Not sure about shaft length.

I'm on a budget and found these motors on ebay. My budget is about $10 a motor. Can anyone with experience let me know if these are powerful enough for my project?

I'm also concerned voltage and amps will be acceptable with my 12volt power supply and a4988s.

really appreciate it.

Here are the links:

5 X Nema 17 Sanyo Denki Stepper Motors

[www.ebay.com]

Stepper motors NEMA 17-DIY CNC ROUTER MILL ROBOT REPRAP

[www.ebay.com]

5 Nema 17 Japan Servo Stepper Motors 51.2oz/in

[www.ebay.com]

A bit more expensive (Is it worth it?)

5pcs NEMA17 BIPOLAR STEPPER MOTOR 76 oz-in


[www.ebay.com]