BoxShed new home

[boxhead]

Hey all, with a move to sunny Mount Gambier region rapidly approaching, it is time to start planning my new shed (Again)

This one is not a workshop (I am leasing a workshop in Mount Gambier to do actual work and restorations from).
But this one is more to keep my finished cars (there will be a hoist for minor works), it will also be my only shed in about 10 years time when I "retire" from retail work.

I think I want a similar size to what I currently have (but not as high) in 12 metres wide by 16 metres long.
I will push the length out to 20 metres so I can make the front 4 metres an office, games room, clean assembly room for dashboards etc) also a kitchenette and bathroom.

The block has a slight slope so rear of shed will be dug into the ground and front will be filled to level it out.
I think I will only need a single access door for cars (on the side) and leaning toward a sliding door for this.

Does anyone know if there is a company producing American barn style sheds in this size without posts inside?
I don't need high sides, but I do want somewhere that I can fit a hoist and have enough height clearance.
There will also be a mezzanine above the front office section.

Does anyone have something similar?
Do you find the single access door difficult to live/work with?
Throw ideas and contact at me please.

Cheers all.

Oh, And although I have had some serious offers on the Cobra (up to and above my initial price) I just cant bring myself to sell it.

SA has a scheme in place for "Club Rego" that sadly does not currently allow replica vehicles, I will push to make this happen once I relocate, but they also have a "seasonal" rego scheme, so I will use this until club rego is possible.
So I will put full rego on my car before I move south and hopefully simply transfer it across.