Looking for garden tactor junkyards.

if you are lucky enough to live in a small city, sat under 50K , go make freinds with the local scrap yard, by offering to pay a bit above market value, they might save old lawn tractors brought in for you to look at & buy

SBI
Central Ne.,USA

One other option: cultivate aquaintance with the operators of your local small engine service shops. They usually maintain a small boneyard that might give up some goodies.
SBI's suggestion has worked well for me but recently I have run into some resistance from scrap dealers to selling parts to walk-ins. The objection seems to be in possible liability for end use. I just bring it up so if you run into it you will not be surprised.

Good hunting!
Griffy