I'm another with the Equalizer setup. Both me (48 years old) and my father (71 years old) have the equalizer and nor he or I have any issues handling the heads.
Maybe my father is an anomaly, but he still digs trenches, drags hot water tanks out of basements (he has 13 apartment buildings that he maintains) and pretty much does everything that he has ever done... just a little slower and with an arthritis limited neck and upper spine. The weight of that cast head is about the last thing that he would consider.
The equalizer works extremely well and for me and a 28" camper box (33' bumper to coupler) the sway is flat out eliminated, the front axle weight was put back to within 80 lbs of the empty truck and it made driving the box of air pleasurable. And it was $350 used on FB Marketplace. I love buying things like this for half price, you know... things that last decades and don't really wear out without massive amounts of use. Go used if you can, spend the saved money on something else you want or need.
2019 Ram Bighorn, CC/SB 2500 4x4 6.4L/8 Speed, Max Tow 14,460 lb/2,940 lb payload.
2019 F-150 King Ranch 3.5 Eco, 12,800 lb/1,546 payload.
2020 Coachmen Apex UL 289TBSS
2019 Quality Trailers 16'x7' 7K GVWR Utility Trailer
2019 IronBull 22'x102" 14K GVWR Equipment Trailer