Hi folks! Welcome to IRV2! We're sure glad to have you join the gang!
Hope you find the right 5er for your needs. It would be great to have bunk beds for the kids right now. They need their space and you need yours! You might want to get one to use until they are grown up, then go the the rear LR that you really want. BTW, you are not limited to 34'. We have a 2002 Cedar Creek 36RLTS that only weighs in at 13,000 lbs loaded the way we travel! We pulled it with a Ford F250 for 10 years with no problems. We finally went to a MH last year and are now trying to sell the 5er, but we really loved it!
Good luck, happy trails, and God bless!