[Hallicrafters] S-38B Parts Needed

[William Ward]

Hello Listers,
 
I'm restoring an S-38B receiver and need the following parts if anyone has them, whether original or reproductions, as long as they are in reasonably good shape.
 
Main tuning and bandspread tuning knobs, 2 identical knobs
Bottom cover or pattern for bottom cover
 
Are the set screws in the knobs bristol or allen?  I don't want to ruin the ones in my set and thought I would ask before rounding them out.
Tnx.
Bill Ward
W5QI