Do you mean my time and money all balled up into one? The gun itself is $30.00 and I have about a week of time in it. Quite a bit of that is drying time, but I'd say I have about 8 hours in it all together.
I sell them for $99 plus it's $12 to ship most anywhere in the US. The profit is only $70 (devide by 8, heh)and it works out to under $10 an hour.
I'd do some larger steampunk styled guns, but I just don't know the market for it compared to the HALO/Aliens/Etc.. crowd, but I'm just about booked making the ones for people who have already paid. The rest go on eBay so I can test new styles, color combos and such. Hopefully I'll have a website up where people can contact me there because keeping track of everything strictly through gmail is getting a bit tough!
I'd tell you there's also a few smaller guns you should consider, one is the Recon and the other is the Alpha Trooper. They also just released a sawed-off shotgun style nerf that's pretty cool. I should have one of those done this week.