I'd go with 250s. My 2001 Marlin (OX-66s) has them and I cannot imagine putting 225s on it. There were fine on my 1994 Sailfish. But that weighed over 3,000 lbs less!
Once you take on a full load of fuel, water, supplies and some people, you'll be glad that you went for the 250s.
Also, you...