What's missing?

What is missing here for the shifter and steering in this pic?
Where can I find the bushings and correct bolts for the shifter rods, at the front o the van? Mine are missing the bushings and the bolts are just reg bolts double nutted.
Thiss is a 64. I also need the cover that goes in the floor to cover the master cylinder.
 
Image :
https://i.servimg.com/u/f34/18/44/46/02/logan-12.jpg

I'd suggest a manual. They should have an exploded view of all the parts.
As for where, hopefully one of the Chevy guys will see this and help.
Here's the picture...

Some info for you about truck manuals, not vans. Just to get you aware of what's out there.
http://www.stovebolt.com/techtips/chevy_manuals_60_66.htm

and don't forget this site has parts supplier listings!
http://www.vintage-vans.com/chevy_parts_links.html

Strap for the column and the top of the shifter. These parts are around, so no problem there. As far as the pins or bushings down below I'm not sure on those either. I'm sure someone has the info you need for that.