Agree with the others.... if you can find one you like with a big block pre DPF/DEF go for it. We almost pulled the trigger on a 2005 Essex with the ISM 500 but the Allure we got with the 425 ISL was just so much cleaner, nicer, better maintained coach. It has a DPF and I know that will be a costly item when it is time to have it cleaned or replaced by Cummins.
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.