The cheapest weller costs how much? and what character and items? thanks for the help

Mage

Stat 15 into Vit and the rest into Int

30+ Int Weapon
30+ Int Weapon
120+ EE 55 Attack Charm
120+ EE 55 Heal Charm

Should cost about ~500 or so.

1 of those charms would cost around 500

I'd say that 1.2 - 1.5k would be a more reasonable estimate.

And personally I think that 10 vita is enough it's all about preference though