Thank you all for the replies, we have not made the purchase yet and are still keeping our eyes open. I would love to get an old GMC as stated but they would be tight at 26' for 5 plus a dog and they are 40 years old. We may wait till we have a little more money for a newer one but I like the fact I can work on some of the older ones.
The newest member of our family was a surprise, and not planed but is a blessing. The dog is also part of the family an a class A is the way to go. We did check out some class C's but they did not seem as stable just walking around in let alone driving.Thank you again for all the advice!