Just my two cents, leave it as it is if it is still serviceable. If kept clean and filled they work just fine, the value of the vehicle will retain more if that is your goal. If not then here is a link for an example of one that would work and very easy to install. https://www.classicparts.com/1936-59-Air-Cleaner-Assembly/productinfo/86-605/

Fined a filter that fits. An is high enough.