Anyone sell a variety of adjustable trailing arms?

[gearheadgarage]

Trying to find some adjustable tubular upper & lower trailing arms for a custom 4-link we're doing in a '50 Merc. Anyone offer arms (w/ hyme joints?) in different lengths & diameters?

Just feeling it out here from home....I'll throw out some lengths when I get to the shop tomorrow.

Thanks in advance for any help you guys might have to offer!