Help I need to choose a cat!!

I am 101 KG and will promarily sail single handed - intermediate experience (eg can mange to steer with back foot and get not too tangle din kite sheet).

Would also like a platform for pottering with my 9 year old and the odd blast to impress wifey..

I have three options:

- A Nacra 5.2 early 90s vintage all rigged up with kite, current thought is never sailed one, looks good value, don't like boom, not as aesthetically pleasing to me as others.

- A Dart 18 that is late 80s although new hulls in 90, new main 5 races ago, new mast in 90, standing rig etc. No kite rig, but handicapping will mean I am not disadvantaged

- A Hobie 17 with comfort wings - 5 years old, more expensive but looks the best. No boom - good.

Can anyone help me compare....

thanks

H

- A