150mm Xenar? not a huge image circle
240mm tele? How big is the circle on that?
The 90mm won't be much better.
I can't imagine those three lenses are that expensive if bought on their own. Outside of people with short bellows cameras who is going to consider that 240mm?
You could pickup something like an Ansco 5x7 with a 4x5 back for very little have lots of money left over for a lens set. A nicer lens set.