Need help pulling my 273

Ramenth- THANKS! I think you are right about the half moon wrenches. That will certainly be worth the purchase (Oz- while you are at it, you can snag some pliers!). We are at the head end of the project now. Coolant is draining while we catch dinner with wives who haven't seen us much lately because of A body cars. The battery is disconnected, and the fuel line is soon to follow. Hopefully, we can slide the engine forward enough from the transmission that I won't have to pull the distributer, but as it sits, it is pretty close to the firewall.

How much room should we need to replace the freeze plugs? If the radiator and fan are removed, and the engine is slid straight forward about 6 inches, do you think we might be able to get at them?