First caveat: the ship as published is a mess. The Errata is required.
The Foghoks is over half fuel and cargo, at about 5,300
tons out of the 10,000, so already you're down to a King
Richard for detailed size. Missile magazine is another 150
tons or so.
-Eight bays take another chunk out of that, though at
TL11 Rating 7, they are only 50 ton bays. Still, that's
another 400 tons that become pretty simple.
-151 Staterooms. Another 604 tons.
-Bridge size is not straightforward in MT and TNE,
but the USP lists 13 Bridge Crew and 20 Command Crew. I
think you can assume at least 30 tons of "walk around"
Bridge, and maybe more. Not all of those Command crew
are Bridge dressing...
-Of the 3,600 tons left, around 1,166 are just the
Power Plant. Jump Drive is another 300 tons, and the
Maneuver Drive is 1,100 tons.
-The two shuttles are another 200 or so total.
-The last 600 odd tons is incidentals and no-maps
like Life Support and gravity. Oh, and airlocks, which
your gang WILL want to know about.
So more than half of the ship is fuel and cargo, and
more than half of the rest is drives and bays. More
than a third of what's left after that is staterooms.
As a 10k Needle/Wedge under MT, the ship will be
between 160 (wedge) and 192 (Needle) meters in length
under TNE design terms. That would normally mean
decks between 80 and 96 TNE grid in length. BUT. The
ship has no Inertial Compensation. It becomes either
an old school space opera design with everyone
strapped in, or at least some of the ship is stacked
instead. And the ship is capable of 4G...
In TNE context, this thing was a deathtrap well
before Virus hit it.
I'd say the ship is heavily segmented, built to
handle changing gravity and still provide crew access,
if not comfort. Weird "grav lock" stairways, ladders
on t! he ceilings, swiveling bunks. No long grav pong
hallways, though.