[Pibwl]

Vickers E formations:

373 Vickers Tk Sec - Available: 09/30-10/39 - should be from 6/32 (as unit 449). However, a section of two tanks, especially twin-turret ones, is in fact unnecessary, when we have platoons. A section of two single-turret tanks from 6/34 would be more useful, although it's also unnecessary.

384 Vickers Tk Pl - Available: 09/30-12/33 - should be from 6/32 until 7/33 (Type A tanks only)
Now it uses 99-nation tank as a template (could be 449).

385 Vickers Tk Co - Available: 09/30-12/33 - as above

It would be most real-like to create interim formations with 37mm-armed tanks, considering, that there were only 6 - IF unit 640 Vickers E Mk.A is reclassified to Cavalry Tank:

Vickers Tk Pl - from 8/33 until 5/34, with two Cavalry tanks (eg.644) and three Light cavalry tanks (eg.449)

Vickers Tk Co - from 8/33 until 5/34, with 449 Light cavalry tank and three platoons as above

Otherwise, formations below could start at 8/33, but then a company will have more 37mm-gun armed tanks, than it was available.

386 Vickers Tk Pl - Available: 01/34-09/39 - should be available from 6/34 until 10/39.
Proportion of A and B tanks is correct, but a commander's tank should be Type B (more natural would be to place three Type B tanks first at all).
As I wrote, unit 450 is IMO redundant, and could be replaced in a template with eg. 644.

387 Vickers Tk Co - Available: 01/34-09/39 - as above.
A commander's tank should also be Type B.

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I'm attaching proposed or better pictures for Vickers, TK-3, TKS and Polish 40mm Bofors. Two are proposed for units 640 and 644.