Hmmm... 2003 Chevy 1/2 ton burban & 27' Safari

[docbluedevil]

Howdy, all!

I'd appreciate your thoughts on this trailering set-up. I hate to ask one of these trailering-type questions but I have to give in finally. I've been reading as much as possible to make an informed decision/question but hey, 10s of thousands of dollars are at stake here, so I gotta ask you "experts" for confirmation/objections first!

Situation:

We'd like to buy an A/S once and for all and feel that 27' feet would meet that need in terms of long-term livability. Need a separate bedroom (for babies to cry themselves to sleep in) and twin beds preferably. A dinette and sofa would be nice, places which can hold people (kids drawing at the table and parents sitting on the sofa). The 25'ers can potentially meet that need except it has that full bed/rear bath mix which is a little less than ideal (walking past sleeping kids to use the BR). We live in western Colorado and may need to routinely cross mountain passes up to 10,000 ft.

Tow vehicle: 2003 Chevy Suburban 1/2 ton 5.3L, V8, 4.1 a.r.

GCWR 14000, GVWR 7200 => leaving about 6800 lbs for a trailer (assuming reaching max GVWR, right?)
Carries bicycles, kayaks, associated gear (~100-200 lbs). Oh yeah, 2 adults (total 200 lbs), 1 baby (20 lbs) and 1 Golden Retriever puppy (30 lbs, going on likely 80 lbs). Will likely need to go to one of those scales. Have no clue if we're anywhere near GVWR.

Trailer: A/S 2000 Safari 27'

GVWR 7300, Dry weight 5440 + Hitch 730 = 6170 lbs
Read on another thread that water and propane would add about 460 lbs as well => 6170 + 640 = 6810 (which just about matches my limit for a trailer assuming max Towing Vehicle GVWR, right?). So, either no further trailer cargo (with max towing vehicle GVWR) or (if not reaching Towing Vehicle GVWR) up to about 500 lbs additional trailer cargo, right?

In summary: Possible with less than max truck GVWR and max/near max trailer GVWR. Right? Or wrong (cause of the mountains, 20-25% less than max rule, etc.)????

WELL, what do you think?

1) Do-able? By a lot (probably not)? Barely (maybe)?
2) Is it safe?
3) Any families out there doing just fine in a 25'er?

Thanks ahead of time for your advice/info/critique.