Part 1
My current equip is:
I have no idea if Solak equips is strong, but I am a simple person, the one that gives me more AP, I use. I tried using Solak set but I cant see any difference in DPS so I didn't bother much.
Next, I Upgraded to this equips, you should get this ASAP as it is not very hard.
Part 2
From now on, you are going to farm for Legendary Equips and be ready for BT.
The aim is:
It is possible for 12 of you with the same gear to complete boss 1 to 3 with this gear, but you must be really well coordinated and practiced.
Pug raids often ask for 1k AP since lvl 55 update, so you might not meet their requirement. Often doesn't mean always, there will be pug raids for the lower geared group, or create one yourself.
Running with clans will be easier, you would practice with the same group to learn, so do look for a clan and see if they are planning for BT or not. If not, make a static raid group or make a clan yourself.