Actually, I do know Zeb. Going by what you said - "I lift serious weights, but I can only just heave these around by myself" - my conviction about lifting is further confirmed. But what I meant is, say I know about lifting (which I do), and someone comes and says something about it that I'm not familiar with, and particularly, contrary to what I think I know about it. I listen, cos I'm always wanting something better. It's no reflection on me if what I'm doing is not as good as it could be for optimal health and function. It is a reflection on me (and my emotional state) if I don't listen. So, I'm not dissing you. I'm dissing lifting. (And cardio, but that's another part of the story.)
Back on topic, of course it's just plain smarts to use a dolly/hand truck when moving things around places. Hell, if you had an overhead or cherry picker handy, almost regardless of how strong one is, it'd be a good idea to use one for installing a monitor. But, if you're familiar with Brooks Kubic, odd-object lifting is very functional. And if you absolutely happen to be alone when doing any of this stuff, it helps to have some experience in OOL.