R/C + Haer + Mage or Sorc + ??? Or power trio best?

[Adieu]

Looking for fun advice. Both dialogue-wise and interesting combos. Currently playing w/ Edwin romance mod + Edwin level1ed to a sorc for variety's sake (and since he usually gets insane amounts of spell slots as a conj, this might actually be nerfing him ever so slightly for limited spell choices). All traps and locks disabled via mod for the sake of smaller party size & Edwina romance, else I'd just use Nalia or Jan. Don't say Immy - that woman makes even Jaheira look positively pleasant...

Currently got:
Female multi R/C (legit rolled+tomed stats 19/19/19/21/19/20{10-ring-cloak} - obscene huh? took all of 3 mins to roll too): FoA+whatever
Haer Dalis: strength girdle, belm+kundane
EdwinA sorc
...Jah for quest duration, tempting to keep as she's actually NOT annoying and almost funny w/ a female PC + haer + edwin, but sorta a weaker copy of my PC and requires micromanaging which is just a pain.

So, Valygar for CF+belm once HD picks up UAI and scarlet? Doesn't require any micromanaging, true, but is about as exciting as an Oldsmobile driver and lacks Stone/Ironskins, which could be a drag in a party that's cast like 5 healing spells in 3 chapters so far...

Or powertrio R/C+HD+edwin (or Nalia/Jan if I played w/ traps and locks)? Cause I have been noticing how I never bother to play a bigger party to full potential, or even notice said potential... Also, a bigger party w/ an R/C, a blade, AND a sorc could take the challenge out of the game, right?

And, for a powertrio, give HD CF+scarlet and bugger the extra attack lost? Or bugger CF? Seems like I'd be losing out on a lot of ToB gear once I get there, and I never actually bothered finishing the expansion...

ADVICE PLEASE!

Also, other than a few beneficial bracers & scarlet ninjato, or the vastly slower Carsomyr for the few fights where +5 is needed, what else can HD get out of uai?

[Ode to a Grasshopper]

Might as well just stick with the 3.
I'd give HD CF over Belm/Kundane and forgo the extra attack, but you can get some better weapons in ToB-Purifier would be good once you get it.
The Staff of the Woodlands is nice for summoning Shambling Mounds.