I’m a competitive powerlifter (if you’ve ever been awake watching ESPN ant 2:00 am and watched meat heads carry rocks, you may have seen me) and have struggled putting some components where they belong. So you’re not unusual.
A lot of the issue is how awkward the weights are and how you have to support the weight forward from your center of gravity coupled with the lack of any good hand grips. A 50lb awkward weight is worse than a well-designed 200lb.
Smart designers put in handgrips, which changes things immensely.
The other thing you can do is partially disassemble things. Usually, most of the weight are things like heat sinks. These are generally not hard to take off and put back. Get a screw driver and an Allen wrench and turn 100lb of deadweight into four 25 lbs small weights.