Speaking of other solutions.
The older Ek SE240 is 280x120x26mm the current model is 28mm thick. So you would need to find NOS or a used one.
This unit is 10mm longer than the LT240 which might stop it from fitting.
But if it's not too long. Going by OT video where he shoves in a 30mm rad with 2 slim fans. I am inclined to thick a 26mm rad isn't going to be an issue. It's also 22fpi not 16fpi like the LT240
Another note. I am planning on mounting my radiator what ever it ends up being like OT with the fans between the rad and panel. That way i don't have to worry about clearance of tubes and cables on the fans.
I had several of the *old EK SE240, the dimensions are very inconsistent (+/- 1.5mm) b/c the way they made the framing. I would stay away from this.
This inconsistency is one of the reasons EK switches to the new SE line.