It is one of my favorite games of the past years, I absolutely recommend the game of P: K. I am eager to put my hands in Wrath of the Righteous.
And yeah, the game is big, it covers all the "Kingmaker" AP modules and it takes you from level 1 to 20 with the two DLC ( Uh, you can reach Lvl 20 without the DLC if you like grinding a lot or you play solo but...)
I want to play P: K shortly. Did you get to finish?
Is there no respect?
Yeah, it has respec ( the guy of the pathfinder society in the tavern, it costs an amount of gold per level to respect, and you can respec your companions too )
You can also hire and create your mercenaries from scratch if you want to try builds that are not covered by your companions, but I do not recommend it because they are mute mercenaries and do not have subquests like Amiri, Linzi, Ekundayo, and company.
The "Beneath the stolen lands" DLC also offers a stand-alone big dungeon to explore where you create your entire party in the purest IWD style so you can try new builds if you can pay for them.
Both good ideas. But 2 levels of Warlock costs me 5th level Wizard spells. The Magic Initiate feat would mean I'd have to go with the Variant Human, which would cost me my great sword, medium armor, Misty Step, Jump, a cantrip, telepathy, and +1 to an ability score. But I'm always open to ideas, so I'll think about it. Maybe I can make it work? I spent 3 days working on this build renamed The Astral Tank.
If you do not like variant human you can pick a feat at level 4 or 8 if you want to go full gizyanki wizard, but as I stated before, the cantrips you get will level up to your character level (Even Eldrich blast ! ) but sadly the level 1 spell you pick with "magic initiate" cannot be heightened, like "Armor of Agathys".
http://dnd5ed.wikidot.com/feat:magic-initiate
It works fine for other wizard builds tho.
So, pick only two levels of warlock for eldritch blast + agonizing blast is a good idea?
You may, but remember that you will cast those spells (obtained using multiclass or magic initiate feat) and the agonizing blast using your CHA because that is what warlocks use and as stated before if you are not using the MI feat, you will lose the 5th level spells (if your question was about a wiz-warlock MC)
The good thing is that you are playing a wizard with a patron. Patrons are always fun to RP.