That looks just like mine!a couple of pics as promised. it's not pretty as i don't have the correct tools for cutting thin metal and i haven't made a frame yet, but a nice improvement on my original signals.
I drilled the cap with four holes so I could permanently mount the antenna to a fixed surface.i like it! nicely finished with the end cap on the base. i didn't cap mine, so i could sit it on a short stake for stability.
That looks just like mine!
I have a pre-amp mounted inside the PVC right at the antenna.
A bit of over-kill but it's fun.
RF Bay, Inc LNA-580 amplifier: 0-580MHz High IP3 LNA, NF=0.7dB
Noise Figure: 0.7dB at 250MHz
Gain: 23dB at 250MHz
DC Voltage: +5V/70mA
SMA Female Connector