I have a couple good 350 tanks a clutch cover or two, top covers for 340 but I'm pretty sure that they will match the are without the primer bulb, I know i at least have one coil, a couple sprockets and quite a few smalls.
For the 55 I know i have at least one carb possibly 2, same for coils, maybe a carrying handle, a muffler or two possibly some heat shields and spikes for both.
I need 2 carrying handles, a front handle/housing need it to be complete doesn't have to include the carb, A/f cover, starter assembly,(which reminds me I have a starter assembly for the 350) flywheel brake guard hardware and cover.
I can send you pictures of what I have within the next couple of days working away from the house. Let me know if your interested and let me know if you have what I need. Thanks