Since we ordered 7 years ago or so to Kuramoto with the following two kinds:
(1) ITO glass , thickness of 0.4 mm, sheet resistance , 3.8 ohm/sq., transmittance , 86%,
(2) ITO PET , thickness of 0.125, 8.8 ohm.sq., 76 %,
I do not remember what kind of glass we ordered, but we prefer higher grade glass, the same as my last time order to Kuramoto
As to the size of (1) and (2) whatever the standard sizes are available at your site, that is fine, if the size is around 30 cm x 50 cm, then we need at least 4 sheets for each,