I haven't decided if I'm going to go ahead and make the molds, but I have been getting PM's and emails from people asking if they can buy one, or if I'll build one "just for them"

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If I do decide to go ahead, here's what I'm thinking... I'd like to make two prototypes, one of each size, just like the photo below.
The first one I'd make would be a 4' Mini-M416 on a Harbor Freight 12" wheel/21" tire Mini Trailer. It would look pretty much like the 1/4 scale model on the right in the photo below. I probably would offer it for sale before starting to build it, so if anyone wanted to own it, they could contact me and we could work it out so they could commit to purchase before construction started - then they could have some say in how it got built.
If I then decided to build a second one, it would be a 6' version, on an HF 1720-lb. capacity frame, with Jeep-sized wheels/tires. I'd paint it olive drab just like I did the model. It would have metal M416-style fenders. And military tail lights, since I just acquired some

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The second one would either go to a company for them to use as a master for making production molds, or if a company wasn't interested in it, I'd sell it to anyone interested.
I don't think I'd make more than those two, and I'd definitely be selling whatever I did build, because I've got too many trailers already. I'd be building them just because it would be a fun project for me

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I'll decide whether or not I'm going to make the molds as soon as I finish up the last mold for my current project:
http://www.expeditionportal.com/forum/threads/78680-CJ-Grille-Conversion-Kit-for-the-TJ-LJ. I expect to wrap up the fiberglass work on that project by the end of next week.