It doesn't make sense to bother with jobbing out initial fabrication of a prototype unless you've got VERY deep pockets and absolutely plan on going into produc

It doesn't make sense to bother with jobbing out initial fabrication of a prototype unless you've got VERY deep pockets and absolutely plan on going into production. Unless both of these are true I suggest modeling the part from balsa or foam and then cast your prototype in resin or low temperature metal.