inscribe Rune

[Glewistee]

So, with

Inscribe Rune:

You can tattoo arcane runes upon your flesh or the flesh of others.

Prerequisite: Caster level 3rd.

Benefit: You can create runes. Inscribing a rune takes one day for each 1,000 gp in its base price. To inscribe a rune, you must use up raw materials costing half of its base price.

If my characte wanted to buy a

Rune of Contingency:

Aura moderate transmutation; CL 7th
Slot rune; Price 147,000 gp

would he have to be present 8 hours a day for nearly 5 months (147 days) to have it inscribed?

[Ipslore the Red]

It would appear so, yes. I do wonder if you could tattoo the rune on some unattached skin beforehand, preserve it with gentle repose, and then graft it on a character immediately using regenerate. Given the cost and how small the market is, I wouldn't expect that to happen often, though.

[Master of Shadows]

That's the way it looks to me.
being the kind hearted GM that I am, I would say that like any tattoo you can go back for more inscription as time permits and the days need not be consecutive, however other GM's may not be as kind as I am so unless you have a half year of down time, I doubt you're getting a contingency anytime soon.