Consider both overall trailer weight and tongue weight limits. I believe the Ascent tongue weight limit is 500 pounds, so you will max out the tongue weight well before you max out the trailer weight.
I have seen estimates of trailer option weights, but haven't seen estimates of how much each option adds to the tongue weight, as it all depends on the option's fore/aft placement. I can, however, give you two data points:
The options on our 2014 19' that added weight were modest: ac (+140 pounds), front box, 1 solar (+25 pounds), 1 group 29 battery. Total weight was 3180 pounds with 420 pounds on the tongue.
Our 2018 19' has ac, front box, dual 6-volt lead-acid batteries (+65 pounds more than single), framed thermal windows (+100? pounds), spray-on underbody insulation (+100? pounds), and 2 solar (+50 pounds). Total weight is 3620 pounds with 520 pounds on the tongue.
The dual lead-acid batteries in the front box are probably the biggest adder to tongue weight and a lithium-ion battery would lower that significantly. The spray-on underbody insulation probably contributes. Thermal windows were optional in 2018 but are now standard.
It's fun to add options, but if you have a modest tow vehicle, keep an eye on the tongue weight.
Bill R