In the same position as you are but pulled the trigger on a 5' (Tarter)- Country Line brand tiller. It is a 2016 model, very heavy unit. Purchased for $850 currently it's at my good friends house, using it around his solar panels and preparing lot for Christmas Trees and not a problem, says it works and tills like a beast. This is the 3rd piece of Country Line products I've bought, York rake, and box scraper, and now tiller. So far so good.
Wow for that kind of money wouldn't it pay to try it, reviews seem to be 75% to 25% to the good might be a favorable risk for that kind of money.
I would love a piece like that right now, I currently mow with a 60" belly mower and would like to add offset mower to the rear, that would help with the time factor on my 3 acres. Have a 52" Bunton walk behind I'm working on changing motor and attaching square brackets resembling the Swisher Brand pull behind mowers. Going to pull this behind my John Deere 855. That would give me roughly 112" total but with overlap probably 100" of good mowing width.
Getting back to the Country Line Brand, I called the Tarter Corp to get some info on the driveshaft, it was two inches too short, so ordered new shaft on eBay. But, they won't deal with a customer or retail, they only deal with Tractor Supply or private dealer who carries their products, might want to find private farm supplier instead, I don't think our local tractor supply people are well versed in finding and ordering parts from anyone. So that is one draw back.