areinert -
I bought my 2305 last summer - I live in a SE suburb of the Twin Cities so there are MANY JD dealers within 20 miles of me.
I paid $13,700 for a 2305 with turf tires, 62C deck, 200CX loader, JD
ballast box, iMatch hitch and steel guards for the ROPS lights. This was pre-tax but delivered to my door. I got a good deal, but more importantly I have (I think) a decent dealer too. Not sure what promos JD has going now, but I bought mine when they had the 0% for 36 months.
Looks like you're at over $14,500 without the ballast box, iMatch or ROPS light guards. So, just on these items, you're at least $1000 high.
I think you're in the ballpark on the 47SB, maybe a hundred or two high.
Not sure what you're looking at for a 64 tiller - is that 64" wide? That's quite a bit overspec for the 2305 and would really be adviseable only in previously worked soft soils. 50" is in spec for the 2305.
PM me if you want more detail or I can help out with a dealer in the Twin Cities area.
Good Luck!
Scott