Mitchell 386 parts

[Riy2018]

Good Day!
I never knew that Mitchell had made so many reel variations.
Recently I got very old Mitchell 386 not working.
I was tying to find any one who has working parts: 81479-Reel Drag Adjusting Knob; 81457 Drive Gear with handle.
Ebay people have parts that cost more than reels itself.

if any one have working parts please send me message.
I wants to fix reel so my kids can use it for surf fishing.

[Riy2018]

I Found some one on Ebay selling Reel Drag Adjusting Knob for $25.
man told me that it is very rare to find.
looking for expert suggestions.
can I use any other knob to replace original