Stuck pistons/Crank, any ideas?

It took some mental engineering but I finally got it done with the motor sitting on the garage floor. I used a bench box wrench to get to two of the four rebellious rod nuts. Although I could reach the last two with that wrench, the space between the crank lobes would not allow me to turn the wrench. I could get a socket on them but could not generate enough torque to turn them and an extension wouldn't fit. What I tried next was a deep socket and used it as both the socket and an extension for the wrench. It worked like a charm. The crank came right out. Six pistons popped right out but the last two put up a fight. The driver's side rear piston was caked in dried sludge but finally surrendered but not the passenger side piston. It was a bear. It was the only one that was dried and had some rust. Here it is what I figure. It was stored in a dirt floored barn, (this guy had about 30 383s and 10 or more 440s), on its face. I figured that by the amount of dirt in the crank pulley. The oil eventually drained out of the cylinders into the pan. But the pan had a hole and the oil drained out of that. Nevertheless, enough oil remained in all but one cylinder and the crank to keep things lubed and from rusting. I don't know if it was cracked or not, but the last piston broke as I punched it out. Most of the top broke off. The block and cylinders all look good. Also, the date on the side is 2/26/68. Does the February 68 date make it a 68 motor?

The reason I posted all of this was in case someone else goes through this with no help. Several of my neighbors suggested I put the motor on an engine stand. I just shook my head. Of course I have an engine stand. But what was I supposed to do, tuck the engine under my arm and bolt it to the stand? I had no help at all and the motor was deilvered on a pallet on my driveway. I had to figure out how to tear it down, plus dealing with all that went wrong, knowing I would have no help. Maybe someone else will be in the same situation.