I've looked at the offerings of those companies countless times. Speedway's catalogs are normally close by when I am planning. Nice stuff, but just not what I am looking for.
CRS as in "C
teel"? I would be using 4130 Flat Stock; .250 and .500 thicknesses.
I could just model the axle and have it cut from 6061 or 7075 billet, but that runs up the cost and strays too far from the theme and method I chose. With the high-end fabricated axle, I'd have about $250 in materials, and about $350 in services (laser cutting, TIG welding, etc.). Of course, that' not counting my labor, but that's one of love.