The 2E sights are cast as spells like their 1E counterparts, the only thing that changed is their effects beyond providing mage sight as listed in the Mage group. I'd say you need to combine mage sights to get the effects of more than one. otherwise the spell with the highest potency takes precedence.
As for your questions on counterspells and scrying, I'd like to refer you back to the core rulebook for another read. One of those mechanics doesn't work the way you describe them and one isn't even using the correct terminology. We made a point to you earlier about reading things, so asking about 'scrying' for mana isn't something I intend to answer. Read the book, learn the terminology, and then ask your questions.
As for your request for a scene, if someone wants to run you a prp for you to get your feet wet they are welcome to do so. I will be running plots and the plot add will go up in the future time table I described previously. I have a lot on my plate at the moment, and my time for posting is typically scarce. The time I have will go towards plots for the venue and then my character. Solo quests of any variety are off the table from me unfortunately.