The swing m is a conveying pump. It would pump and spray airless plaster but not at the controlled conditions or high pressure the swing airless will. You will also need a compressor to blow it on the wall.
I would use the 13mm pipe and powercoat gun to apply the material if i was using the...
Longer cables cause a drop in Voltage and the lower the volts the higher the amps.
The higher amps can cause the machine to trip the power supply
110v 32 amp supply with 2.5mm cable can probably stretch 25 mts maybe more however in 230v you could run much longer cables.
The guys machine wouldnt operate properly with a knock off rotor stator, all he has done is replaced knock off for original PFT parts and the machine is running great again.
Hes said the knock off shaft is shorter.
I went down this route when i first started out and was advised by my PFT...
The beauty of original PFT pumps is the HUGE range of rotors and stators available to choose from.
I tried knock offs years ago and they were s**t, so i always stuck with the original PFT ones