Heretic Inquisitor reatraining costs

[PolydactylPolymath]

I have a 3rd level Inquisitor (Heretic) that I was considering retraining to Sanctified Slayer. From what I understand, abandoning the Heretic archetype at 3rd level requires paying retraining costs for the Judgement (Escape), Lore of Escape, and Hide Tracks class features, for a total cost of 15pp and 450gp--even though Lore of Escape is the only one that replaces a class feature. Retraining to Sanctified Slayer would then cost a further 5pp and 150gp to retrain the Judgement class feature, for a grand total of 20pp and 600gp. Is this correct, or have I left anything out?

[Viskous]

Retraining an archetype is just too darn expensive, I had wanted to do that with a shaman type druid, and it just was too much. I just shelved the character even though it is level 6 and started up a new character that was more fun.