Crazy, for doing the smart thing? I don't think so! Build you a daily driver and move on. Looks like your doing a 40 mile one way trip and thats OK. I drove a '50 about 35 each way for a looong time before the old 216 gave up the ghost. I put a 235 in it and it could take the speeds.
Since your 54 should be a 235 full oil pressure engine I would say do it!! Plus, if its speed, or MPG you want you can change the rear end gear to accomodate you.
....and, if Tx is anything like S.C. you can put an antique tag on it, like I did my '37, and not have to pay county taxes on it any more. In S.C. we also do not paid the yearly Road Use Tax of $25 on a vehicle with antique tags AND we do not have to ever purchase another tag.
And once its on the road no truck payments ever and your always in style!..........crazy, I don't think so
Now, after all that, Welcome to the Stovebolt. Lots of knowledge and good folks here to help you accomplish what you want to do and your also part of the Texas Connection. They'll show up soon.
