@Outofspace
I never said that my equipment suggestion would be BiS. But it's a playable proposition. A lot of people here at xpoff spend hours and hours honing their characters, only to then play exactly 4 or 5 games after 100 hours of preparation. I saw a lot of BiS chars here that have 300 or 400 honorable kills. This was also a point that I didn't want to put too much time into chasing individual parts (e.g. from Naxx), but wanted to finish it quickly.
The threat creator asked for gear suggestions. He didn't ask for BiS suggestions. The items are often in the AH several times on Ghennas, so they are easy to get. Of course, this can be more difficult on other servers, you're right.
For me it was and is difficult to find a group on a server whose language I don't really speak (the worst thing is all the abbreviations in "gamerspeak" in English) and to stay in it until the final boss. So my path was just farming ores etc. and then buying the blue items in the AH.
I would always see 250 AP above 3.5% crit as well. That may be the case with the mana, here I will have to gain practical experience. I played a lot of 29er PvP and mana almost never played a role. The fights were often not long enough for mana to have an impact. I was often able to quickly win a 1 vs 1 (which happened seldom enough) with the Huntertwink, and otherwise there were often 2 vs 4 / 5 fights, which ended also quite quickly.
Again, my suggestion wasn't about suggesting a BiS gear, but about getting a playable character quickly and easily. I paid about 1k gold for all armor for my Hunter. That's ok, I think. And with everything you shouldn't forget that you're playing against LvL-Chars, which often only have 6k life or so. My mage at LvL 64 does not have 5k life in green gear from Hellfire Peninsula.
Thank you for your feedback.