So on the advice of another forum member I checked out Jawstec who is an on demand printing service like Shapeways but with much more reasonable prices.
I had them print the front bumper in glass filled Nylon. They use MJF (multi jet fusion) which is similar to SLS in that its printed in a tub of powder.
I'm pleased with the results, it feels very sturdy and the finish is pretty good. I did get it tumbled just to see how that came out, compared to SLS from shapeways it still has the grainy texture but the tumbling smooths that out a bit. There are some lines in the print that aren't supposed to be there but I'm okay with it.
PETG on bottom (my print), Jawstec print on the top.
I also picked up an interior for the LC70 a while back as I've accepted this body will just be heavy, possibly in the 2 lb range. The interior is really nicely designed with tons of detail, the seats move and recline which is super helpful in fitting a driver.
I had a Duke Nukem figure that seems like a good fit for the scale.
I also got the door cards that are meant for their window kit (functional windows) but I'm planning to not hinge the doors or use the working windows. I just think the body will have a lot more strength with the doors screwed on like stock. Also if the doors aren't fastened they dont align properly so I'm not about to throw all that work away.
I cut off the tops of the door cards because they interfere with using the stock window insert which is a single molded piece of lexan.