I have a 12 row ground drive JD 7300 planter. And the well aged 250 monitor. I purchased a new I pad this winter. What $$$ am I looking at if I wanted to do the precision 20/20 type monitoring only? Or would I have to have a monitor from precision? Have JD auto steer, but only the 1800 display. And putting a JD controller and harness from a newer JD planter on the 7300 would be too much $$$ I think. Cold here again, so dreaming about fancy things.