Inside mounted hinge for outward opening gate

I have a bit of an odd gate mounting problem.

I need to install an outward opening ‘side gate’ but I do not want to mount the hinges on the outside of the gate (partly for security and partly because the gate has recessed cladding and so fitting T-hinges, hook and band hinges or similar would require packing behind the band which feels a bit of a ‘bodge’.

The gate cannot open inwards due to a ramp behind the gate.

The picture below illustrates the problem (top/plan view):

• The first example shows the gate opening inwards with a typical hook and band type hinge – but I cannot install the gate opening inwards.
• The second example shows the gate opening outwards with a typical hook and band type hinge, but this has security issues and requires the band being packed behind which I do not want to do.
• The third example would partly solve the security concerns, but still has the band on the outside.
• The fourth example would seem to be a solution, but does this type of hinge exist? I cannot find anything like this anywhere. (The gate is 70mm thick)

If the fourth hinge type does not exist, can anyone suggest any other way of installing the gate?

The closest thing I have been able to find to the hinge type in the fourth example is a two-way hinge like this one https://www.amazon.co.uk/UHPPOTE-Stainless-Freegate-Two-way-Opening/dp/B01N4L5W13 though it is effectively a butt hinge again and I don’t want/need to the two way opening.

I have been advised that butt hinges are absolutely not recommended for gates as they are not strong enough – though we have a very heavy, solid wood front door that is easily as heavy as this gate, that is fitted with butt hinges.

Surely there must be a way…