First, welcome to CHR.... That is a wide open question. Depends on what you want and how much power. An EFI crate engine can run anywhere from $5,000.00 to $50,000.00 depending on what you get! Labor rates in a Hot Rod Shop will run between $50.00 and $150.00+ per hour. Putting the standard small block Chevy into your frame is going to require a lot of fabrication work, some frame reinforcement, updated suspension and brakes, etc, etc..... The list of accessories and other components you need with a crate engine again depends on what you get for an engine.

Might be best to talk with some folks, exchange ideas, and come up with a plan for what you want to build. Lots of good folks to help you out here on CHR with many years of experience in building cars.