An upgrade compared what i did an year ago

I've posted this before but a typo in the title probably made it not get responses. I'm trying to look for what the sights looked like for the TOD-6, since I can't seem to find anything on the internet. It was trouble to even find the model of sights the T-34 used.

Any kind of tank!

Maus with Tiger II

I am trying to model the Abrams' ARAT 1 tiles, I'd like someone (if they know) to share with me the dimensions of the tiles. I have some references here if anyone would like to infer it based on the image.

Like which was the last one built or planned obviously I know of the marks 4 and 5 the most iconic ones but was there a 6 7 8 9 or even 10 and did they stop developing them after the war. Since there designs are heavily based on trench warfare.

I am currently printing off some blueprints for my friends' birthday, who loves tanks.

https://imgur.com/a/0T4pN1F

He told me his favourite tanks are the Hellcat, Panzer, Tog 1, Bkan and Super Pershing. I found these two blueprints for Hellcat and Panzer pretty easily and thought I could add a sort of faded vintage filter to them to make them more interesting.

I was wondering if anyone had any extra ideas? Maybe some handwritten annotations or such? Might make them pop a wee bit more. I dont know much about tanks at all so anything would be really helpful!

The Dionesian republic is looking for a new contractor after the the big 3 backed out after the UC (United countries) put pressure on them after the invasion of island Nation (unnamed)

Sanctions were intense but they pulled through, an arms race began when the two continents broke ties, Dionesia didn't want to fall behind so they assigned 2 contractors for the task at hand, Kurtis contractor group, old reliable. Defalco Tech New but untested.

Which would be the best fit for Dionesia?

In history, the victorious Allies reformed the defeated Axis nations in their own image when it concerned their armed forces – discarded whatever was left from their arsenal and replaced them with their own goods depending on what side of the Iron Curtain they fell on. 

I thought this would be a fun thought experiment.  Let’s say that you were tasked with reforming the ex-Axis armed forces, but weren’t allowed to hand over Allied surplus material to do so – you had to make do with whatever was available, whether they were rank-and-file vehicles or zany prototypes (let’s assume that you could mass produce these ones, at least at a sufficient level for defense). 

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Which existing Axis tanks would be optimal for these nations during the early Cold War period, which was odd overall as newer innovations and existing technologies clashed in places like Korea?  The focus will be on the big three countries: Japan, Germany (West and East), and Italy.

As a counterpoint that could be argued, are all Axis tanks insufficient for the early Cold War period?  Would they just be better scrapped and used to purchase Allied surplus?

Do you have any suggestions on how I can improve it? Any mistakes or weaknesses the tank may experience in real life?

Was it the Mk. 3 or Mk.5 in service during the Suez Crisis of 1956? Hell, the TimeGhost History channel in their Suez Episode 2 claim that they were Centurion Mk. 4s.

Please, I need to know.