600 pounds of TPH counterbalance should suffice for 90% of your FEL lifts with air inflated rear tires.
With tractor in 2-WD, equipped with R4/industrial tires and bucket empty, your tractor should not mark lawn. (At least in north Florida.)
600 pounds of TPH counterbalance should suffice for 100% of your FEL lifts with 'loaded' rear tires.
I suggest searching for a 600+ pound Box Blade or a 600+ pound rototiller as counterbalance. Both implements are usually available used at reasonable prices.
1,000 pounds of TPH counterbalance will be ample for 100% of your FEL lifts with air inflated rear tires.
Your Branson has tremendous FEL lift capacity for a 3,000 pound bare weight tractor. If you have stability issues, consider having the rear wheels spread further apart.