I need a chainwheel for Redline Monster Cranks, will a Proline of a Flight Chainwheel work?

yes. all chainwheels should fit with the proper spacer/washer that should come with your chainwheel when you order the chainwheel just tell the store/mailorder your cranks that you want to have the chainwheel fit and the chainwheel and they can hook you up. or just take it to a bike shop and they'll have the right spacer

HEy how did you install the redline monster crank? I have mine but the black casing around the bearings makes it too big to fit on my bike!!! I don't know could you please help me out here?

You might have a Mid BB Illmatic.

just take the bearings out of the cups and try to put em in