How does Ironskin Monk and Monk's Robe work together?

[Jufo]

I am interested in rolling an Ironskin Monk, but I am confused about its interaction with the item Robe, Monk's.

From d20pfsrd about the Robe, Monk's:
When worn, this simple brown robe confers great ability in unarmed combat. If the wearer has levels in monk, her AC and unarmed damage is treated as a monk of five levels higher. If donned by a character with the Stunning Fist feat, the robe lets her make one additional stunning attack per day. If the character is not a monk, she gains the AC and unarmed damage of a 5th-Level monk (although she does not add her Wisdom bonus to her AC). This AC bonus functions just like the monk's AC bonus.

The unarmed damage is easy, but the Ironskin Monk replaces the AC bonus ability with Iron Skin (Ex), so how does the Robe, Monk's work?

Thanks in advance

[Cwethan]

RAW my take would be that your Monk would have their Monk AC calculated as if they were 5 levels higher - and still not get it because they swapped it out for Ironskin Monk.

That said, in any game I ran you'd be able to at least get the bonus as if you had no Monk levels.

[Jufo]

Cwethan wrote:

RAW my take would be that your Monk would have their Monk AC calculated as if they were 5 levels higher - and still not get it because they swapped it out for Ironskin Monk.

That would actually make sense, even if it is a little meh

Cwethan wrote:

That said, in any game I ran you'd be able to at least get the bonus as if you had no Monk levels.

That would be a decent houserule, I would probably allow this in my own game too.

Anyway, thanks for help :)

[Java Man]

Another decent houserule would be to add to your level for ironskin.