steering wheel assembly for 1971 Chev pickup.

[rooster11]

I have a restored 1971 1/2 ton Cheyenne, 2wd, four speed on the floor , tilt steering. The guy who built the truck put a GRANT steering wheel in it. classicparts.com says there was a deluxe and a standard steering wheel available for these trucks. He sells a standard wheel, but no mounting kit and says no one makes them yet. so, is there two steering wheels that came on this truck, and does anyone know where to get a NOS or reproduction steering wheel, horn button and its mounting kit also ? LMC has NO tech support, and did not know anything about what they sell. classicparts.com was $75 cheaper on the steering wheel which is nice, but can't supply the mounting kit as mentioned. Who has what I need ?