It's possible that different vendors might have better prices. The oil pump you will need was used on 1954 and early production 1955 235 engines. The later model, larger 235 oil pump that was used from midyear 1955 through 1962 pumps only fits engies with an offset in the engine block oil pan rail on the passenger's side. It's too wide to fit inside a 216 or early 235 oil pan.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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