I am trying to purchase a Tau 7 Junior for Tetrathlon use for our daughter.

I have emailed Tau and they dont have any Tau Junior right handed left but will have some ambidextrous ones soon. They recommend I buy the Compact. Not knowing anyting about pistols there doesnt appear to be much difference apart from nearly £100.

Can anybody give me a clue? The gun is for a right handed 8 year old girl to use.
Should I get her a right handed one and pay more or accept an ambidextrous one