Letter and number reversal is still really normal at this age. My precocious reader and writer was still reversing 6/9 and b/d occasionally at the end of K and beginning of first. Every once in a while she would read a b/d word wrong, too.

I don't know about the spelling. I don't think I have a grasp of what is age-appropriate there.

She sounds really neat and potentially gifted to me, but also like an interesting puzzle.