Viability of 1/2 plate international back on Thornton Pickard Imperial camera

[c.sharpe.7]

Hi ! I've just joined after popping on to the site a number of times recently. I'm quite new to photography and so I'm still learning.
I've recently got into large format and I have built my own camera (I'll add photos etc in the appropriate thread later).
My question relates to a Thornton Pickard Imperial Triple-Extension 1/2 plate view camera which I purchased recently. The camera has had the front standard supports replaced and other mods, so I decided to tidy it up and get it working as a functional device.
I've added a 1/2 plate international back to hopefully use with 5x7 film holders? Can anyone advise me of the viability of this - I understand that the dimensions are compatible with 5x7 holders. I

I've attached a photo of the camera and sprung back (hopefully) for your comments

Thanks

[c.sharpe.7]

Problem solved: the sprung back is correct!