<VV> Carb Accelerator Pumps Compared + AutoZone carb rebuild kit question

[Charles Lee]

Are these Carb Accelerator Pumps interchangeable ?

Pix at top of this page :
http://www.yourbuyersinn.com/Cars/Corvair/1967MonzaCarbQuestions.htm

I bought carb rebuild kits at AutoZone for $13.99 - any comments ?

Do they have gaskets resistant to ethanol, etc, found in new gas ?
Mfg bt GP Sorensen

Thanks
Charkie