Thats a lot of hose. I used about 10 ft to replace the majority of mine, but I was doing mainly the ones on the engine and going to the boost gauge. If you are really going to replace ALL of the hoses you might need the 10 meters. Have fun with that.
Some time ago I had a lose hose, that I didn't know where it belonged. The engine changed its "attitude" when I pinched it, so I figured it was somewhat important. Of course, I couldn't figure out where to plug it, nor find a diagram of use in the manual. Eventually it got connected when Tibor did the head gasket, and of course, now it's obvious.
At the time I did look for a diagram and found nothing. Is there one available? I would like to change the vacuum hoses (among many other things) and I'd like to be thorough... which may be complicated for a mechanically challenged person like me without some guidance or reference.
There is no diagram. There is a guide here . It is for a UK LPT so there will be a few differences. It would be wise to only replace one hose at a time, instead of pulling them all out and then trying to figure out where they should go. .
I used about 6.5m to do mine. I ordered 9m so I have plenty spare, which is useful. But my car is an LPT as well, so again there will be some differences.