Wall fixing glass door where wall 2 different thicknesses

[00]

Bedrooms in my house had built in wardrobes and previous owner put a shower in one and cut a narrow 600 doorway from one to the other and boarded original wardrobe door off. It seems that this wall must have had two different thicknesses end to end as one side of the door is flush with the door casing and the other side, the casing is 20mm proud of the wall. Above the door is thicker and there is a 'ramp down' to match the thinner wall. I intend to put a glass door with a couple of wall hinge fixings. These will have to be packed somehow so that the hinges are level with the casing edge and the door lays flat across the casing. perhaps a strip of ply/mdf? Also I'm not sure the best way to finish this door. Ideally I wouldn't have architraves so that the glass lays flat across the door (otherwise will need to build up under hinge even more) but not sure how best to hide the casing gap. Any other options? Any ideas welcome.

Hinges would be like this. WANLIAN Heavy Duty 90 Degree Glass Door Cupboard Showcase Cabinet Clamp Glass Shower Doors Hinge Replacement Parts Wall-to-Glass (Polished Chrome) https://amzn.eu/d/3xVpX3s

 

[Wayners]

Maybe square off instead of that angled ramp
Make a 90 degree return along a bit allowing you to fit new door

 

[jj4091]

Where is your shower tray going to be? I would be thinking of removing the casing , making good and fitting the door to the tiles so that you have less trouble sealing it.

 

[00]

The doorway isn't directly to a shower tray itself. It is to a large wardrobe size room that has a shower at the other end. I just need a door to separate the shower room from the bedroom (noise, draughts etc). Needs to be face fix as is a very narrow doorway already 610mm so don't want to lose another 35mm (5%!)

I think plastering the whole thing level makes sense. There will be a built in wardrobe on the right that will give just a 7cm strip to plaster down level with the casing.

Still tying to find a good plan to cover the casing from the side while allowing the glass door face fix hinge to be level and cover the whole doorway.

Options that I see

1. Leave architrave off, make all walls level with casing, caulk timber-plaster gap so is seamless and copes with a little movement.
2. Fit decorative single sheet around doorway instead of architrave that goes further right to the built in wardrobe. Perhaps plaster the sunken but or just pack under fixings to make level

Any preferences or other ideas?

 

[jj4091]

Sliding door?

 

[00]

Not sure that a sliding door helps with the problems I have with this doorway. Still need to level to make the doorway look normal.

A pivoting door allows me to install the wardrobe to the right without worrying about the gap I need for the door opening and, frankly, I prefer pivoting doors for lots of other reasons, noise, speed of entry, ease of maintenance etc