Had some interest til finding nuts, bolts & rope are extra, also ski's are extra $$ & they can't ship em'
And if they only sold it as a complete unit, someone would complain and say they didn't want to pay for the hardware they could buy locally, or that the skis made shipping too expensive.

This way you buy the parts you want and hit your local thrift store for a pair of skis. Seems pretty simple.
Welcome, Easysled. Good luck to you.