Good looking trailer, all my info is based on my 2011 but but interiors look pretty close. Wish mine had the ceiling fan
Can't help yaw on the tow vehicle, pulling mine with a 2000 3/4 chevy long bed
As far as storage space we to were a little worried about that, but you will get creative as time goes on. The only thing we deal with is the coffee maker but we store it in the cabinet above where the tv goes by the front door.
Our stove came with a cover that folds down over the burners when not in use, you might ask about the cover. It helps out for counter space
As far as the bikes go my trailer came with a slide out under the rear bumper, and I can get three bikes on it with no problem. I always put the extra bike(s) in the trailer, by the front couch. I do use the front for storage while going where ever we go. I did install a four bike rack on the back, attached the the bumper but i am a little nervous about using it. I don't trust the bumper I would look into getting extra support if you do that, It has not come loose yet but I give it a good once over each and every time I use it.
Can't help on the generator don't have one.
The water filter is located between the hose bib and my garden hose, my trailer does not have a built in water filter. 10 bucks at Walmart
With two boys we, always extra kiddos coming along with us so a tv up front was a must. Ours came with a small one tv by the door, I moved it to the front bunk and it fit perfect. Sorry I don't know the size but I would measure the opening and you should not have a problem finding on. I turned around and bought a 32" for the space by the door
Not for sure what the Jayco cubes are, but one thing we do is that raise the bottom mats up against the wall and use this space for storage when going, once there just lay the mats down. I have slept up front and the mats could use more cushion.
One thing I wish we did have was a extra A/C not for sure where you live, but I live in the DFW area of Texas and wright now it is about four degrees cooler then Hell. And one problem is that the front bunk does get warm, no hot during the day I usually put a fan up front and it helps. But again for the most part the kids are not in the trailer during the day so we deal with it. One thing I have done is bought an extra vent, to install up front for the a/c, just have not installed it yet.
Without the cross over space under the trailer I was worried about not having enough storage space, but we have not had a problem yet. This was our first fifth wheel and we have enjoyed it every time so far.