Landships II

I am also plannig this conversion so what I found is:

1) add the reinforcement lips around front driver and TC hatch holes (look at part D22 to proper shape).
2) use front hatches from Mk IV (part C26 instead of V7);
3) use roof plate D21 instead S13, add exaust end, use PE parts TP3, fill rear holes for sprud basket and exaust cover (parts E17, E18 and E19 on mk IV);
4) you need a new rear observation hatch. In Mk I kit you find only some parts of it (D13 and D15 but not E4, E5). You need also a new plate reinforcement with plate hinges (Mk IV E15 without rail supports) instead of MK I T29;
5) I am not sure of this: use D7 instead of S12
6) change on front hull horns (sprue M) the rounded tensioning bolt housing with squared like Mk IV. Use part C2 instead of V5.
7) on S6 rear plate fill holes for parts T1 and T2,
8) add a basket between the rear horn and its two straps. Refear to pictures from the net or from this thread for their shape and position.

landships.activeboard.com/t60820053/mark-ii-female-c-21-perfect-lady/

9) erase the rear gear were the tail axel is connected to the hull and fill holes,
10) fill holes were parts T4 and T5 are connected to hull
11) erase the buttom tube for steering tail wire;
12) use track spruds,
13) on steps 10 and 17 change the upper gear model B (light duty) with one of model A (heavy duty), this a common mistake from Takom on all their rhomboid tanks.
14) drill front head light because Takom made them solid.

15) on Female tank: you need to make an adapter for MG on side sponsons since Mk II had Lewis MG instead of Lewis. Note you have all four Lewis on sprues C (parts C6)