ok folks,
Lots of good ideas, but the key here is it is for about fifteen head on a rented piece of property. Start burying stuff and it is no longer yours once the lease is up, it is part of the property.
Here's what I see in the pictures, a typical transition. People start with welded wire panels, they don't work, so then the cheapest portable panels are next. They get bent and people try to use them in spite of the sharp points created by the mashing of the cheap stays the manufactures use. Eventually, they either learn to buy good panels first or get out of the business, sometimes after some serious doctor bills. Thing is, there are several brands that have good heavy materials.
The aluminum flat panel gate is real telling. In our country, if stock doesn't take them out, a strong wind will.
Bama, I think my design would entail 3 adjustable alley bows, 9 good panels and one 10 foot 16 guage bowgate. It is durable, functional, portable and not too pricey for a small operation. It puts safety back into the equation.You can use the cheap panels for what they were meant for, lower pressure perimeter areas.
My guess is about $2000 to $2500, depending if you use panels or a sweep tub leading to the crowd alley,
Just send me a fax number, I'll give you the layout,
By the way, The pipe thru the alley to keep calves from backing up, that has borken more than one Femur. I sold a guy a $7500 system 4 years ago (lots cheaper Steel then). He priced it the previous fall for $7,000, decided it was too expensive. He got on the wrong side of that pipe and a cow jumped back, the pipe snapped his Femur. It cost him nearly $14,000 out of his pocket in Dr. Bills, nearly twice what a good system would have,
PPRM