All I use is a cheap whetstone from Clas Ohlson, for £5.49 in the UK.
http://www.clasohlson.com/uk/Whetstones/40-9031
It has a coarse and fine side, combined with a a paddle strop they give razor sharp edges. If you don't have a padle strop just take and old belt. Eirther use the belt as is, or
glue it to a piece of wood.
No need for fancy sharpening systems, at least not of your knife has a scandi grind.