Please be encouraged. Do not let your breakdowns stop you at this point.
We have a 2000 Fleetwood Wilderness and we have been full timing in it for over a year. We are only in mild climates so never have to deal with a big freeze, as we pick vacation spots that never drop to the freezing temps.
I lucked out and my unit while it is approaching 13 years old is in amazing condition. I am mechanically inclined so most repairs I can do myself.
Upkeep and maintenance is the key. I am so sorry your 5ver came to you with so many problems. Just fix each one and stay on top of your regular maintenance and you will in time see some benefit.
I do hope more good will out weigh your bad and that you can be encouraged with some good times and make some great memories as you travel the open road.
This forum is so wonderful to give you knowledge on how to fix things. If you are stumped on something you will get the answer in here.
Not everyone ever agrees with each other as allot of people will have different opinions on subject matter. Do what I do. Use the stick method when you ask a question keep track of all the answers you get that all have the same suggestions and the ones that stick out and do not meet with the whole group, then do more research yourself until you feel confident you have the right information. It is a learning experience and I am a newbie and I have allot to learn yet about 5ving... but I have to say it has been so rewarding and this forum is awesome at helping with problems.
Good Luck and I do hope your troubles will go away soon. Don't give up. You will love this eventually if you do not feel so great about it right now.