I have had no problems with my Red Jacket pumps.

Why the pressure tank? If the flow is unrestricted, the tank is just going to be empty anyway and providing no benefit. If you restrict your flow your pump will be shutting on and off costing you more money and reducing your pump life.

I have a similar setup and it can keep my 3 acre pond topped off in all but the most hot/dry weather (isn't much in Wisconsin). However, I have nearly zero loss through the soil, only evaporation.

The dissolved oxygen coming out of my well is very low, so I trickle the flow over some stones as it flows into the pond.