Inquisitor 1 is mostly for when you can make use of the wheel to spread your debuffs and skills (so with a physical build like Chaplain’s AA or Paladin), Zealot can be mixed with more classes/builds.
Krivis 1 wouldn’t bring you much. If you want Krivis + Zealot, you should go Krivis 3 so you have longer Zealot buffs.
Chaplains are full INT or SPR, you put Inquisitor with it so your AAs turn into aoes. That’s why your Inquisitor is full SPR: because of Chaplain.
Since Blind Faith damages are boosted based on your SP, that’s why people go full SPR Zealot. They can go Krivis 3, Paladin, Chaplain, Bokors…
Note that if you go full SPR you’ll have to invest in weapons in order to get better damages. If you don’t want to invest too much, then you should find a build that is full STR or INT.
What do you want to solo farm ? Only casual things like HG, missions, dungeons… ? Then I’d advise you to go for a build with low cooldowns and aoes instead.
Inquisitor’s Wheel has a long cd, which means you won’t be able to use that spreading damages magic too often. So I wouldn’t focus on it to solo farm groups of mobs.
To solo farm, I feel Bokor and/or Sadhu are both much cheaper and effective. Low cd, low investments, they do the job effectively. Cleric’s Heal is a great aoe as well~
You mislead when you say it like that. Soloing CM 7 isn’t something any newbie Chapquisitor can do. You need to seriously invest in your gear, and then being a Cleric helps a lot: heal + the possibility to easily go full SPR. The way you said it makes it sound like Chap+Inquisitor is an OP build .__.