Enhancing the Robe of Runes

[Optimistic Cynic]

Greetings everybody!
I am currently running my Witch (currently level 13) through Rise of the Runelords AE, and am currently wearing the Robe of Runes.
One of the character's companions is currently enhancing the INT bonus from 4 to 6, but my question is this...

Is it even possible to enhance the Robe of Runes to have the same abilities as a Corset of Witchcraft?
And if so, when the crafting part says the crafter must be a witch, does that mean absolutely, or does that just add a bit to the crafting difficulty as not meeting a standard?

Thanks for any help anybody can give!

[Avianfoo]

Is it possible? Yes. See creating your own magical item rules. Or move the corset to a different slot.. e.g. belt of witchcraft.

Will your GM allow it? Probably not. Life is all about difficult choices.

[Optimistic Cynic]

Avianfoo wrote:

Is it possible? Yes. See creating your own magical item rules. Or move the corset to a different slot.. e.g. belt of witchcraft.

Will your GM allow it? Probably not. Life is all about difficult choices.

Our group doesn't allow crafting of abilities across slots for the most part. However, we are allowing enhancing within slot, so you can pay to have a ring of protection +2/Evasion, with the appropriate cost increases.

Before I ask my GM if I can find a Sixth level witch with the correct feats that will enhance the Robe, I was just wondering if a non-Witch could do it, with the difficulty going up by 5 (I believe it is 5 for every requirement you do not qualify for?). Or if the 'crafter must be a Witch' note in the requirements overcomes that rule and you absolutely must have a crafting witch.