Not an enginner here, but can a sideways port work?
No, the ethernet port is wider than tall, so that would be even worse.
Sticking out vertically but not horizontally seems fine to me, given that the original Ethernet card sticks out both horizontally and vertically.
I think I have a solution to the work that @ExplodingWaffle had been doing. It’s VERY tight, but viable. I’m going to try to get it cleaned up and presentable over this weekend, as right now it’s a bunch of (carefully) dimensioned placeholders that yields a table clearance of 0.08mm.
I was almost ready to share my CAD work & drawings, when it occurred to me: part availability. I chose a Singatron part similar to what @ExplodingWaffle linked to in his original post, but I cannot for the life of me find anywhere to purchase it.
Anyways, I’m going to switch out the part I was working with, the Singatron 2RJ1656-000111F, for the readily available RCH RC02405, and see if my approach still works. I should hopefully have this ready to share within the next day or two.
Note that this one doesn’t have the LEDs on it, so you will need to provide those separately.
Switching to the RCH part didn’t work out dimension wise, so I decided to pivot and turn my assembly into a configurable parametric design that can be used to more quickly check if a given jack could work.
You can find the Fusion Archive, as well as a drawing (PDF) depicting where to get the configurable dimensions from a connector, here. The drawing uses the same names for dimensions that the Configuration ‘tool’ within Fusion is using. Dimensions where the name is in parentheses are parameters that shouldn’t need to be changed, but can be in the model parameters if desired.
In the mean time, I’m going to see if I can find somewhere to buy Singatron parts. I contacted sales, and was directed towards Farnell. I haven’t been able to find Singatron parts on any Farnell site, though, so more digging is required.