Buy used washing machine which being advertise in QL under classified column from time to time with reasonable price range from QR400 to QR700 depends on the model and period used.
I suggest you to buy fully automatic front loading, any brand will do. Front loading is better than top loading. If you wanted to buy a dryer, buy it seperately as washing machine combine with dryer 2in1 is not advisable due to easy to breakdown. Cheers..