Hi,
Instead of mining contract we're renting out GPU's. You can rent them and send us details on what you want to mine and with what settings and will kick it off. Within your renting period you can change your settings as you want and benefit from changes in the current market. In addition we're also allowing rigs to be hosted at our rigcenter (Netherlands) with better power pricing then you could get at home.
prices depend on period and amounts, but will be very competitive contact us for details at info@mlab.company. Trail (paid) periods of 7 days are available.
If you have questions in general i will try to answer them here.
Thanks for reading & happy mining!