Slab table hardware question

I am working on a table, a rustic mission style 2.5" slab table with a blocky complex trestle leg base held together with proud pinned joints.

I know the traditional way to attach the trestle top rail to the table bottom, however I don't believe that will work in this case. The table top is highly figured crotch wood so I will need a c-channel.

I would love to keep the rustic look. Is there any c-channel hardware available that is also a hidden mounting rail for a trestle leg?