National has more than a "business problem" - they are out of business. That means the warranty on the Pacifica is worthless, so figure that into your pricing. I would normally assume you could get a 25-30% discount off MSRP on a new motorhome, so get that much and much more to cover the loss of the manufacturer's warranty. You should still be able to get warranty service on the engine and chassis and probably the major appliances (they are separately warrantied). but don't be surprised if dealers want up front payment even for those and let you worry about the reimbursement.
AS for the Pacifica itself, we checked one out when we were shopping last year and, while it was nice enough, we felt that rigs like the Tiffin Phaeton offered much more in terms of comfort and quality, at the same price level. But if the Pacifica is what turns you on, then that's the right choice for you.
There probably aren't enough of them on the road to get meaningful feedback about reliability, but the previous and similar Tradewinds was well regarded by its owners.
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL