Kysna Guppie for a 60 year old paddler

Hi all,
I am in the lucky position of getting ready to move onto a boat, but I need something to paddle!
The boat is a monohull and space is limited so I am thinking 4mts is the max I can fit onboard.
Saw a Guppie for sale so I thought I should ask for some opinions.
Currently on a Swordfish and XTso it's a step down obviously. I'm 180cm and about 74kg.
Cheers, Dave.