Ooookaaayyy.... Your location says "Basel."
Staying commited to a tough routine 6 days a week is very hard work so hanging on for 60 days with Insanity opposed to P90X which is.....dada ....90 days you will more likely be able to succeed.
Also....Insanity is without any gear and the girls on the DVD looks better than the P90X chicks :-)
I have bought P90X, P90X2, Insanity and Insanity Asylum plus some gear from Beachbody and it works well every time. Shipped with Fedex to your home for very low shipping rate,
If in the US, see if you can just snap up the discs from someone on craigslist... As to the supplements, I am sure you can find them, or the exact same, in Switzerland, and you won't have the hassle of carrying bulky supplements back with you. That's my two cents, for what its worth...
However, if you wants to buy any supplements from Beachbody they do not ship those internationally due to restrictions.
Which website have you used?
Or go to www.Beachbody.com and click "we ship worldwide" in upper right corner.......
The only equipment you would need to purchase is a pull up bar (50 chf) and some bands or dumbbells (~150 CHF).
There is also a program from Men's health called "speed shred" which also looks to be pretty good.