Speedway C10 LS stands
 

Speedway has been upping their game with C10 items lately.
I would be running these if I didn't already have the Holley version.

https://www.speedwaymotors.com/1967-...ck,445271.html

They also make a kit that includes the transmission crossmember that looks pretty good.

https://www.speedwaymotors.com/1967-...it,487640.html

I have no connection to the company, but have bought various things from them over the years and always had a good experience.