Kheldian Incarnates

Any suggestions for a range-heavy Peacebringer (human plus nova) who is close to 50 as to what she should aim for in incarnation?

Clarion Destiny is the only incarnate power I would consider mandatory for Kheldians. I'm also very fond of reactive interface, my Warshade uses Void judgement for thematic reasons, and I really like the spiritual alpha. I know Warworks used to pretty much be the top choice for Lore pets, but I'm not sure how the new ones compare.

For my incarnates I went:

Alpha: Spiritual
Destiny: Ageless
Judgment: Ion
Interface: Reactive
Lore: Seer

If you have endurance issues, go for Cardiac, but I would think you should be able to moderate those well enough that you could go for Spiritual (which would help a lot with all the long recharge powers PBs get, as well as getting Conserve Power up faster). I went Spiritual on my PB and it's pretty nice, allowing for build up and other attacks to be increased, as well as my heals. If you're not hurting for recharge or endurance, I could see going for more damage, perhaps. I'd still say go spiritual unless you have enough global recharge that Hasten is perma or close to it.

Judgement, go for what is fun, though you could easily color Void to look like PB powers (and with no end drain to use it!). I'm probably going to do that for my Peacebringer (going to start running him in trials soon, after I get my Controller to all T3 levels).

Interface, Diamagnetic's -to hit is awesome if you want more survivability. If you want more damage, I'd go with Reactive. I'm not sure the others will help much for a PB, since you already do plenty of -defense already, and won't have any slows to stack (and I'd say I prefer -to hit for more survivability than to have added slows).

Destiny, well, Clarion seems a clear bet, especially for you. You don't have any mez protection (unless your build has Acrobatics running, but that will only cover one hold against you), so that will help you keep blasting away. I'm going for Clarion on my Peacebringer. I could see going for Ageless, but if you have any endurance or recharge issues, I'd say it's better to cover those with your Alpha slot and grab Clarion. You have two heals in human form, so hopefully you don't need Rebirth, either.

Lore... I'd say you could go for theme there, more than anything. If you want damage, Warworks and Cimerorans seem to do a lot, but none of them are too far off, from what I recall being posted. If you'd rather more survivability, going for one of the sets with good buffs or debuffs can help. Seers support casts a weakened version of Fortitude on you (think about 5ish defense to all, along with some to hit and damage), and storm elementals run around with a hurricane version that doesn't send foes flying too much, but debuffs their range and to hit. I'm going with Polar Lights for thematics on my PB, but I'm not sure what their support does. I might just go for a stronger boss with him.

Take a look at this thread for more suggestions.

Khelds and the I20 incarnate slots

I did a tier 4 Cardio Core Alpha on Mist (He's got Dwarf, Nova and Light form, but is a "human primary" build-), along with tier 3 Clarion Destiny, Reactive Interface and Ionic Judgement. Originally he had tier 3 Radial Seers in Lore, but I'm in the process of switching over to tier 4 Radial Polar Lights for almost-purely aesthetic reasons.

I adore the guy...
I really do...

But I've never been under any illusion what so ever that he is, or ever will be, the least bit dangerous. He's a wimp in comparison to almost every other character I have. I still manage to have fun with him (even in the iTrials-) in spite of that, and for what it's worth, he did a fair bit of that journey to 50 solo. You just have to be careful, and take advantage of things like your flash attack, and being able to stay in the air and blast if you're facing goons that are less dangerous at range than they are up-close.

As for Voids and Quants... That's what "bringing the smash" is for.