If you spend some time searching for "Petzval F3" (or F4 if you prefer) at the auction site you will find many options for old petzvals and projection lenses of various price ranges covering around 150mm. It doesn't have to be a Dallmeyer or any of the major names, I'm sure any of those will be plenty good for the goals you describe, and at ~F3 about a stop faster than F4.5.
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