Replying to Ski Tuning/Servicing Essentials?

Normally do all my own base repairs and waxing etc but this season I don't have the luxury of an in house workshop where I'm working so looking to buy a tuning kit so I don't have to spend €15 every time I want my skis waxing....

Now I definitely want an Iron, wax and p-tex. With that I'd normally use a file, stanley knife, metal scraper, wire brush and a green washing up cloth, you know the scourer kinda things but not the metal ones?

But what do you guys use? Any tips? What are all the different materials of brush for? All advice appreciated!