Looking for alternative Obs Periscope mod

[Von Due]

First, here is my current mods list:

GWX 3
Widescreen MaGui 3.4 SA
WS MG 3.4 SA Fix for GWX3
TMT v2 for GWX
GWX 16km Atmosphere
GWX Enhanced Damage Effects
GWX Late War Sensors Snorkel Antennas
GWX VIIC-41 Player Sub
J to Z Class Mod
J to Z Class Visual Fix
Guns UK
Merchant Fleet Mod 3.2

I am happy with MaGui but there is one thing I would absolutely love: An Obs periscope view that fills up as much of the screen as possible. Currently, the view through both periscopes is so small I need to get as close as 1500 meters at high noon before I can see the flag on the target. A bigger Obs periscope would hopefully do something about that. Also, the way it is now, I have absolutely no reason to use the Obs periscope since the top magnification equals the middle mag. setting on the attack scope. There is nothing useful the Obs scope can do that the attack scope can't do better. A larger Obs scope view would change that as well.

So, after all those words: Is there a mod you can recommend that will give the biggest on screen image of what's in the obs scope, while keeping the scales/markings?

I only need a new obs scope that works with MaGui but of course, if there are complete periscope packages that go well with MaGui, then feel free to mention those.