Randy Smith included wood wheel pants instructions on most of his SV series plans...
I did them that way, they came out very light, even with the plywood insert and blind nut hardware installed... my goal was always to have both pants installed at a 1/2 ounce each or less fully painted and usually could hit the mark.
Sorry for some of the cell phone pic's, they were just documentary for myself at the time... didn't even review them to check if in focus, heh, but you get the gist.
EricV