Firstly bear in mind that going from 16 to 18 WIS costs
6 build points which might be better spread around other stats. Thats fine for an evoker build but if your want to have any sort of melee ability I'd advise against it.
Secondly having evasion is nice, but having a metric truck load of SP*, better spell penetration and DCs, and access to more high level spells that you get from staying pure is IMO even better.
Thirdly I've not seen a monk splash FvS that effectively uses monk combat, except at lower levels. Remember you can't craft GS handwraps, and with only two levels of monk you will not get increasing hit-dice on unarmed, stances, finishing moves...etc that give a monk great DPS. Not saying that what you're doing can't work, I just can't see how it would.
My two favourite melee capable FvS are both by Impact:
Elf TWF wielding scimi with monk splash:
http://forums.ddo.com/showthread.php?t=200561
Human TWF wielding longswords pure:
http://forums.ddo.com/showthread.php?t=243539
*1 metric truck load = 1.536 imperial truck loads.