Merge Values For Each Letter Showing Only Unique Letters

I have the Range B:F for "Values MJ" and columns G:K with "Values RT". In column A there is a letter for each row but some letters could appear more than once and I want to have only unique letters in column A and merged the Range B:F for "Values MJ" and columns G:K with "Values RT" in the same row for those repeated letters.

Original data:

A
B
C
D
E
F
G
H
I
J

[Code]...

If a letter only have values in range B:F print "Missing" in range G:K for the same row. If a letter only have values in range G:K print "Missing" in range B:F for the same row.

I'd like to delete the row of the letter if the repeated letter has values in B:F, since letters for ranges B:F always appear after the letters that have values in range G:K and since I'd like the output in same sheet.

Output desired:

A
B
C
D
E
F

[Code]...