Filled up one of the periscope positions, new gun sight and a new Nahverteidigswaffe (the gun that launches the Anti personel mines ) made the holes ....filled up the welds seam from the flame throwers positions on the rear plate and still have to remodel the Gun mantlet and some smaller stuff.
The angle which you'll display the turret does man you can omit the correction to the bottom of the mantlet to remove the step on the kit turret. On mine, I saved time by replacing the mantlet and barrels.
I know of the Panzer Tracts book but not the other..... got the complete title of the aberdeen book ?
My mistake, I called it Aberdeen (as in Aberdeen, Maryland where the publisher and the US Army Proving Grounds were located). It should be Darlington Productions. The book is Panzerkampfwagen Maus, by Thomas L. Jentz, ISBN 0-9648793-2-8.
Aftermarket:
Got the verlinden set... will be using the engine plates and the rest as reference
Also got the Eduard but that a total waste of money
I orderd the voyager Maus pe se (for the engine grilles) it is on order with my modelshop but there slow (cant get the other brand one)but no hurry .
The Verlinden set is OK, once the grills are in place, the generators are really hidden from view (except in your display).
I have the Eduard set and agree that it is mostly useless.
I also bought the ET Models set, again... not much of use.
I do not have the Voyager Models set but there is one I can recommend if you can find it:

Yoshida Designs is the only one (of the sets I own) to have the correct mesh pattern for under the grills.
As for the best references (in order of useful detailed information one can actually use on the model):
Hilary revisited the vehicle and drew the plans from scratch based on blueprints and actual measurements. It properly puts in context the vented road wheels.
Drawings are based on the Russian report (so is the text if you can read Kanji).
Then the above Darlington Productions book, Spielberger's book (for the text which covers the mechanics nicely since Herr Spielberger was a mechanical engineer), and then Michael Fröhlich's book.
Regards,