Greg,
You asked about "something equivalent." There definitely is and it will cost you maybe $125.00 max (if that). The equivalent is a 5 gallon plastic bucket, a cheap 25' aluminum vertical and a roll of solid core insulated wire (16 or 18 gauge). Add a 3-wire top hat to the vertical and ground mount the thing with the big bucket loading coil, feed point taped up from ground. I'm 75 years old and easily picked up the whole apparatus and had it up and tied off in less than an hour, once everything else was assembled.
It works great on receive and my little 5 watt one tube 630m exciter loads up with ease. I can copy KB5NJD Q5 most any time he is on the air, CW. All I have for a counterpoise is that the mounting mast goes in the ground maybe 40 inches and I have that tied off to a nearby chain link fence. Again, tip of the antenna is maybe 25' up. For the top section I bought a 60 inch whip which attaches to the top of the vertical where the top hat wires are connected. They go down at a 45 angle, tied off with insulators to stakes on the ground. So the 3 top hat sloper wires serve to support the slender vertical when the wind comes.
I don't know what the radiation resistance is, but the thing works great, low background noise, no BCI garbage, etc! I'm not saying don't buy the commercial antenna, but on my budget I have to make my own stuff, which is the fun part of the hobby :)
73's
KW7T
Colorado