I recently priced out a used 4210 with approx 200 hours on it (from golf course fleet). It had a new dealer installed 420 loader, eHydro, 4wd, No mid PTO and they were asking 17,000 U.S. I checked agdealer and it is gone now.
I also recently purchased a used 4310 with 70 hours, 4wd, eHydro, 430 loader, mid PTO, for $18,800 U.S.
I know your looking for pricing on a new one but thought this would help you out.
I should also note that it took me 3 months of constant searching to find and buy one of these things. Most dealers in Ontario have used 4000 TEN series tractors on the lot for about a week or two and then they are gone. I missed out on three 4310's since April because I couldn't commit.
It doesn't help that I live in Niagara which is full of greenhouses, vineyards, chicken farmers, orchards, and various other places that buy up CUT's like they are going out of style.