Metro, I think the one I have is an old pulp wooder. Beat pretty hard. Cracked magnesium on both sides of the air filter cover and on the bottom of the recoil housing. Got a new 20" Archer bar and Stihl chain on it. Runs strong. Put a new(used) fuel line on it, resealed the fuel tank(old cork gasket was weeping a little bit). Cleaned the gunk out of the oil tank(mostly condensation, turned the oil white and had lumps in it). It was oiling even with the garbage in the tank. This pic Still has the recoil housing from one of my donor 700s on it.
It's amazing how much abuse these things can take. Their robustness and simplicity probably helped put Mcculloch out of business.
As for weight, the 700 isnt much different to me to cut firewood for several hours a day than the 1010 is. The 700 is a bit different with the 28" Mac bar on it. I currently have the 18" bar that I got with the 700 on the 1010S. They are different than any of the newer anti vibe saws that you might have run, but the power kinda makes up for the cramps in the hands.
Also might add that tje Stihl MS290 that my dad has seems really heavy for the power it has. It is adequate for firewood use, but seems heavy compared to an 028S that I had, and the 028S didnt have a Picco chain on it. Also, I havent had to replace the recoil assembly and the oiler drive on the 028S or any of the Macs ive had. The MS290 has had all of the aforementioned repairs and still doesnt start or oil right. May have just been a lemon. Not judging, just passing on facts.