Brandan, when it comes to dealing with aftermarket parts, you have to be careful who you buy from, especially resin products. There are people who buy from top notch casters (such as Eric at P &P, Dave at AITM, KFS, Auslow and others) and in turn cast them themselves. Copycat caster have inferior work not to mention no morals about copying someone else's work. Ben Wicker does great masters and he can answer any questions about who to buy from, not only resin, but other products as well.
As Brian posted, Eric does some Texas style bumpers in resin and you can also find some stainless and aluminum ones on ebay from Ryan who goes by rhino9905.