We have a Nexus Phantom 23P {24.5' overall} and love our rear corner bed. It came with a quality innerspring mattress and frankly, we sleep better back there than we do at home. We sleep with our heads at the rear of the coach, I on the outside and my bride on the inside{bathroom} wall.
Either of us can get up without disturbing the other. Just flip the covers off and sit up and scoot off the end of the bed. Yes, making it up is a pain but it only takes 5 minutes and you don't have to do it all that often.
When we have the occasional guests the cab over queen+ sized bunk works just fine though you do have to climb up and in. If we have guests for whom that would be an issue we just give them our bed and we sleep up there. Our dinette would be a comfortable bed but we have never even dropped the table to try it as It is nice to have the big lounge/table always set up.
As for towing, I think you will be happier with a dually and V-10 especially if you are towing two bikes or a trike. I tow my Harley Dyna Super Glide on a Kendon single trailer. Bike and trailer weigh 900# and tow like a dream, really can't tell they are there {they don't appear in my mirrors} except when I see the profile of the bike in shadow.
Towing a bike works great, we have towed ours over 9,000 miles {and ridden 15,000} just in 2017 alone. Being able to easily load/offload and go for long rides on amazing roads has opened a whole new chapter to our RV experience. We did two, 2-week trips to the southern Rockies, 2 weeks in Utah, rode out of Flagstaff, Cottonwood, Laughlin and Vegas taking long side trips daily. We love to head up to the White mountains {6 trips this year} to beat the heat of southern Arizona summer... very pleasant at 7 to 9,000'.
The best part is returning to the coach at the end of a ride for a nice hot shower, cocktails, dinner and then a great nights sleep before starting all over the next morning after coffee.
At 67-66 my bride and I are too old to sleep on the ground in a tent and humping all of the requisite camping gear would be a huge pain probably requiring a bigger bike. Nightly stays at motels and eating every meal out is financially out of the question.
Works for us!
:B