So, if you intend to follow your friend's 10 string set-up you can go with one of the "standard"-ish! copedents on one of the several forums; this one, the "Steel Guitar Forum" (USA) or do a search for "pedal steel guitar" and loads will pop up. Be sure to see that it's for "E9th" - which is what you are aiming for.
To elaborate on what my friend Peter told you, there are two main ways to set up a PSG. The difference is which way (from left to right) that you put the pedals. The pedals are always called "A, B and C" (according to what they do) but can be arranged (left to right) ABC
or CBA.
The ABC set up is associated with Buddy Emmons and often abbreviated to "Emmons" (that's my way). If they're set-up the other way (CBA) it's called after Jimmy Day; "Day" set-up. Once that is decided it can have a bearing on where you place the two "E string" knee-levers, one to raise the E strings and one to lower them. Many have these on the same leg, if you do that and it's the left leg, then make sure the raise goes left for "Emmons" or right for "Day"; opposite for the lower.
Here's why; "Emmons" (and I) have the pedals (lt. to rt.) - ABC; the E-raise on LKL (left knee left) and the E-lower on LKR (you can work LKL out yourself and you're learning more PSG terminology

). The raise combined with pedal A gives an inversion of a major chord; the lower works with pedal B for a 7th chord so it's easier to have the KLs working the way your leg moves. We can tackle RKL and RKR later - and maybe even LKV).
The left ankle "hovers" above pedals A and B and sort-of 'twists' to operate one or both. This twist can cause discomfort, which can often be avoided by using the other se-up. My ankle twists nicely with "Emmons" but many of my pals here and overseas prefer "Day" for their best comfort.
If you look over Joe Wright's site beware of the link on the first page to "Joe's set up" - it's a full 12 string tuning (he's known for playing 12 string Universal too) the first 8 strings are the same as a "10" but different from string 9 down (but I'm sure his teaching material is for 10 string).