The front wheel weights seems to have a pretty decent price tag on them. They usually go for $70 to $100 each. Yeah, crazy I know...
I prefer the wheel weights over a bracket, simply for the reason the front end is not carrying the weight. But, then I got several sets at an auction years ago, for $20 per set. Got 2 sets on one tractor, and a set on the other. It does make a big difference.
If you don't want to get a bunch of money in some wheel weights, I'm sure a bracket will work fine. And an odd ball rear wheel weight can be found at an auction, or on Craigslist pretty reasonable. Maybe even check at a tractor salvage yard for an oddball rear wheel weight. 50-60 lbs out that far can make a big difference.