Leinbach 7200jr for TZ25???

[wny770]

I'd like to buy a post hole digger for my TZ25. I can get the leinbach 7200jr with 12" auger for under 500. I don't have to put in a forest, but I really don't want to dig 40 or so holes by hand either. Is this the right size or should I consider a "full" category one...Any opinions???