Is this undermount sink too big?

[SolRobinson]

Hi, we have a 800 sink unit (575 depth including a 65mm service void), which is double door, so requires a centre post. So I intend to leave a 25mm gap from the front of the sink, to allow room for a slightly altered centre post to screw into. However, it means the sink is almost flush with the back of unit. The sink is 800x440. There’s roughly a 27mm to the back panel of the unit or 112mm to the wall.

I’m think I’ll be fine as long as I cut a good chunk from the back panel/support and just have the tap cut out over the service void with the flexis sticking through, into the back of the unit. My only worry is cutting into that back support, considering I’ve already cut majority of the front support out. Am I overthinking it?

Just to add:
- We’re thinking worktops will be 22mm quartz
- I’ll be adding a 18mm marine ply “shelf” flush with the bottom of the sink as the support for the sink.
- I also thought instead of cutting a hole out of the rear support, alter the back panel and lower the rear support (which is at the top of the unit) to somewhere halfway down the unit, which keeps the support and also gives me access to that service void, for the tap. I feel this could be a better solution but then my idea for the 18mm ply shelf would go out the window

Thanks

 

[foxhole]

Unit is a little undersized for sink , looks like you will struggle to fit sink overflow without removing back panel, sink will need to attach to counter top before install as there will be very limited access for taps once top is on.You will also need to remove both side panels at top to allow sink to fit flush.