I'm not a fan of that type of tail wheel assembly. They don't usually last much more than a season or 2 if your field is rough.
That being said, i Did use the stock tail wheel. Its a very light assembly and super simple. If and when it fails, i will replace it with something else
I used a 985 on the rudder. Pure overkill I know. But I had it and didn't have to buy another servo. This thing will hold KNife edge everything all day long
That and the extra "useful" tailweight helped in the balancing.