Information from your knowledge and experience; We are closing, in July, on a 1996 Ocean Alexander 423 With twin 210 hp NA 3208 Cats (500 Hours) and 8 KW Westerbake (sp?) 150 hrs We will be in the Oriental, NC area for 4-6 weeks after the close, then to the Chesapeake for Aug and Sept Florida & Bahamas, Nov - Mar Then start The Great Loop in April 06 estimated Cat run time, 300 - 500 hours per year Questions: 1- What hours do you change the oil (Mains & Gen.) 2- What is the suggested spare parts inventory for the Cats & Gen 3- Where is the best, (read economical/low cost), to purchase the needed parts 4- Any issues that I should watch out for (boat & engs.) 5- Where is a training program for Cat equipment As always thanks for your help and input "The Secret of Success is Consistency of Purpose" Benjamin Disraeli Jim Cobb 616 Otis Blvd. Spartanburg, SC 29302 864-582-5329 e-mail address otisltd@mysc.com