This is a quick list for reference for setting up a cheap effective wax/ tune for private skis.
petex for gouges--- plastic 6 pack beer ring
wax--- get on sale use and remelt scrapings to use again
aprasion pad---get one that they sell for cleaning dishes
wax scraper--- any hard plastic item that is flat and wide enough to cover full width of ski(recomended but not needed)- such as a stiff plastic dust pan
file--- cheap file used to file metal
iron--- old iron with no steam holes- look at secondhand stores or garage sales
screw driver--- garage sales or second hand stores
I still sugest that you get skis/board tuned by a good reliable shop. Take into mind that it takes practice to get good at tuning, may have to redo tune multipletimes.
If there is anythng I missed feel free to post it.