Yeah that hot rod mower is a bit "over the top". I prefer a more original look for my restorations. In years past, just as today, the companies were trying to make utilitarian products that were cheap but effective. So with that in mind, replacing it with something similar available today is the best solution.
I have been replacing the old Victa top caps with these. They are fairly cheap and available everywhere. They look similar to original too. You also get a hose clamp! Apparently they are diesel heater intake filters or something of that nature...
https://www.ebay.com.au/itm/203974704790
