In the USA only Ford and Ferguson Tractors could use Ferguson's Three Point Hitch until Ferguson merged with Massey-Harris in 1953.
Pre-Ferguson tractors, lacking a Ferguson Three Point Hitch, required huge amounts of wheel weight for traction. Pre-Ferguson, tractors were measured in tons.
Today, 60 years after Ferguson's patents expired, kits to convert non-Ferguson tractors to the Ferguson System are still sold:
Complete Cat 1 3 point hitch
Individual R1 ag tires are
narrower than R4 industrial tires, so they sink in a little deeper in soft ground, or when churning, allowing additional bars to grip. Of course, R1 treads do not load.
Dual R1s reduce soil compaction because of float and improve traction by increasing weight and 2X the tire bars contacting soil. Fuel consumption increases with duals. Dual capable tractors cost more up front. I have never observed weighted duals.
In North Florida some have installed puffy, low-pressure
radials rather than R1-duals, seeking some of the float and traction of R-1 duals with single rear wheels. LINK:
Comparison of radial and bias tires by Michelin Agricultural
No mud in North Florida. We have sandy soil and the aquifer is 25' below the surface.
That's what I have always thought, I even thought about putting duels on for field work.
There is no way to satisfactorily mount duals on tractors not specifically built for duals. Duals put great strain on the rear axle so tractors must be engineered with heavier rear components to be reliable with duals. (Kubota dealers having been screaming at Kubota manufacturing for a dual capable ag tractor for ten years.)
Consider radial tires.
Your current implements are narrow and light. With your current implements you will never want for traction with a 30+ horsepower LS, which are heavy in their class.
Heavier, wider implements would be a new case.