QUOTE (Draco18s @ Jul 1 2010, 09:55 PM)

To which I respond in one of two ways:
1) Waving my arms around and going "wooba-wooba-woo" and point out that by RAW the cost is x, therefore the COST is x.
You're welcome to do so, but Arsenal explicitly notes the costs and availabilities are for the
materials necessary for the job, and then explains what else is necessary to turn those materials into the modification. You're welcome to file the modification process under "Y-costs" like surgery, etc.
Edit Edit: Finally tracked down where I got the idea that parts = half of purchase cost, and it might be Hardware-specific, so this gets a little more complex.
I will note that personally I
suspect that the listed cost is the intended cost, and that the modification process added the "cost of materials" note as a bit of flourish to make the process make sense and to curtail attempts at "I can build it, it says so right here, so give it to me for free at chargen because I did it all before the game starts, yes, even the jetpack minigun kit."
Edit: Mostly I think this because otherwise , as you've noted, this would be the
only place in the game where the listed cost is for the incomplete product.
Yerameyahu: I'd probably use the listed price or a marginal increase myself, because modified weapons are interesting, although with the caveat that I'd like to see modifications that arent' strictly made to make the weapon more powerful. MAD-proof is neat, autofire underbarrel grenade launchers less so.