The "pond" is designed to be a free-standing water trough for livestock. It is water-safe according to the manufacturer and the fish seem to have suffered no ill-effect from the relocation.
I am running a Fishmate filter off of a 450 gph submerged pump (thanks for advice from Ash & Andrea) - which also runs the small fountain. I also have a separate 300 gph pump running the turtle spitter and the waterfall. I also have a single submergeable light that gives the pond a really "cool" look at night.
And, if you look carefully, you will notice an "extra" HOB filter at the front of the pool. This is normally on my small quarrantine tank but since nothing is in that tank (thankfully) I wanted to assist the bio-cycle to get going quicker on the pond so I borrowed this filter for a short-term boost. I have a Pl*co in my small Q-tank normally just to keep the bio-filter going. He is living in the larger Q-tank for now. I will monitor the water and relocate the HOB filter back to its normal place in another week, or so.
Meanwhile, here are a couple of quick pics - still have more aesthetic work to do and I have not added in any plants, yet. I have a water hyacinth and a water lily in their own quarrantine tank right now - should be able to add them this weekend. I have already treated the plants once with PP, will probably do another treatment before introduction into the "pond".
Thanks again for all the advice I got from here during this project.