Thanks for the feedback guys. I'm 163cm but it seems my torso is slightly shorter in proportion. But it does make sense, as I might not be able to see over the instrument panel in a hawk.
I'm currently 21 years old but my family are late developers and hopefully I can gain an inch or so in the next few years.
Looks like I'll continue waiting on an offer from the RAF for WSO and start practising yogo or buy one of those chinese racks to extend myself in the hope that I can re-apply when the time comes.