I do not capitalize "he" in reference to God because it is poor English to do so. "He" (upper-case he) in the middle of a sentence means helium.
It is a personal pronoun, not a proper noun, and should not be capitalized. God's name is Jehova, not "he." God's
titles are God, Lord, Saviour, etc, not "he."
That said, it's not something I'd build a doctrine on. Just a pet peeve of mine -- almost all modern bibles editorialize with capitalized "he" and I have no desire to follow their lead.