Ruben,
Welcome to the Rhodes owners list. You certainly have a long laundry list  of 
wants and needs and perhaps you won't find everything you are looking for  
without making a few compromises. The R22 fits your needs perfectly, but it does 
 not have the interior room of the mac 26. It does have positive flotation, a 
175  genoa is available, has inner mast furling main and it can be launched 
and  retrieved by one person with the General Boats mast crane and crutch.
I have never sailed a mac 26, but have seen them on the water and they  don't 
sail very well, in my opinion. You also asked for something that would  last 
a long time. Have you ever seen a ten year old mac? My Rhodes is coming up  on 
being 19 years old and she still looks like a new boat.
 
Rummy