Yeah forgot to say we're in EU so would require STC for any mods. NZ do provide a sliding kit and right pedal extension but I don't think it's EASA approved?
We currently have the dart floor window with mirrors and tend to use 50ft longline. This is ok but can be tricky to see the load! Wind blows the hook back but the mirrors quite handy to get the empty hook to the ground crew hand.
I just think the Max Pilot View Kit is an expensive option and you would need quite a bit of work to justify the cost - most guys I speak to just get on with the job and use the floor window, door off is a good option too.