Help with stabilisers? Gon Nerd 60

[Zentaaa]

Alright boys, I have been out of the scene for couple of years now but have just found my old Gon 60 PCB that I was halfway through building.
I want to replicate my hhkb layout as shown below, I have no clue what stabilisers I need but I remember they were hard to source that's why I gave up!
Can anyone help pointing me in the right direction please? Thanks 

[LightningXI]

Alright boys, I have been out of the scene for couple of years now but have just found my old Gon 60 PCB that I was halfway through building.
I want to replicate my hhkb layout as shown below, I have no clue what stabilisers I need but I remember they were hard to source that's why I gave up!
Can anyone help pointing me in the right direction please? Thanks 

(Attachment Link)

You will likely need 1x 7u for spacebar, 2x 2u for left shift and enter

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[Tactile]

You need this.

And, depending on the layout you have planned, specifically the size of the spacebar, you'll need either this, or this, or this.

Just as a reference, the 6.25u spacebar is probably what you're after. That's the most common - like the Poker keyboard.