Keycap sizes for Filco Majestouch JIS

[MFahim]

Hello, I have a Filco majestouch 2 in 108-key JIS Layout. I'm thinking of getting a keycap set for it. The entirety of the board except for the bottom row seems to follow the ISO format, but I an still unsure of the keycap sizes for the bottom row. If someone knows the length could they please check and see if this is true?

From the left to right, the bottom row is 1.5u 1u 1.5u 1.5u 4u 1.5u 1.5u 1.5u 1u 1.5u

also are there other keys (rshift, etc) that have lengths different from the normal ISO board?

Thanks and any help is appreciated

[davkol]

two 1u keys instead of 2u Backspace (R1)
two-row ("ISO") Enter and "backslash" (R3)
long ("ANSI") left Shift, shorter (1.75u) right Shift and an extra 1u key compared to "ANSI" (R4)
bottom row: six 1.25u keys, three 1u keys and 4.5u spacebar (R4)

[MFahim]

Thanks a lot