Mikus, I mostly like your template, but I tweaked it a bit.
The biggest change I made was to give both mages 8 Priest Spells, so I dropped the TU and luck on the first mage. I kept the priest with 6 TU, but I took Nimble Fingers on all PCs. To do this:
a. for the fighter, I dropped Recovery and Fast Recovery.
b. for the mages, I dropped 1 Swordmage and Fast Recovery.
If Summoning Focus doesn't apply to Simulacrum, I might drop those traits, another in Swordmage and Recovery, and put 5 in Endurance instead. Endurance is just as valuable a trait as Int, since it frees you to assign more Int with the same health pool if you want.