I hear u man !!
From one newbie to another and using the advise the guys here have said over and over again:
Demo as much gear as possible.
I'm just over 6' and 102kg on a good day. Lots of different boards have different personalities. The smaller guys could probably ride a toothpick

It seems like ur getting an idea as to what is good and bad for you so take ur time a little bit b4 biting the bullet and paying hard cash.
I went to a hire spot and tried everything they had b4 I made my mind up.