I have a 4ft by 4ft chain drag similar to this one - ATV 4 ft. x 4 ft. Chain Harrow with 4 ft. Drawbar at Tractor Supply Co. and a 100x100 stonedust arena. I have a 230cc ATV that I bought used which unfortunately had the transmission go after only a few uses, and the mechanic said it wasn’t worth fixing. I guess that’s what I get for buying a 1985 ATV... spent about $800. So I’ve been looking for something to replace this, and it seems lawn tractors are quite a bit cheaper than ATVs, and so I could possibly afford something newer. What size (HP) lawn tractor would I need for this setup? And if this isn’t the route to go ... could you recommend something else?