Here is the best I can come up with.
First maximizer make an adapter from a std 12mm hex to 14mm. It is usable as most 12mm hexes are on 5mm axles. So it should fit the ls10 (and the crt.5, my intended use)
Maximizer 14mm adapter
Now, GS Racing make an adapter to go from 14mm to 17mm. Iis basically a sleeve that fits over the 14mm hex to enlarge it to 17mm, a washer of sorts that is hex shaped and made of 1.5mm thick plastic.
14mm to 17mm adapter
I ordered the gs racing adapter and need to order the maximizer adapter from the lhs. When I get it in, next week, I will let you know how it works. I plan to use some buggy wheels with badlands tires. My only issue will be to figure out what nut and washer combo will work to hold the wheel on. Any idea or link to a flanged nut that will fit the ls10 and crt.5 axles?