1. From 35, Tower will usually give you something like "Make [early] right turn heading XXX" which will point you at WES - from then on it's the same as from 17 (ie you'll remain in Class C until they let you go somewhere around Altona). Similar for 26, if they're using it for departures (then it will likely be "early left turn ..." to keep you clear of YMML traffic).
2. Squawk 1200, monitor Approach 133.55. I usually broadcast my intentions, but not necessary.