Well, went to the dealership saturday to take a look at the engine, it really was in surprisingly good shape! I asked the dealer directly about whether or not the main bearings had spun in the saddles and he said that they were exactly where they were supposed to be. The case halves were together, but looking down through the cylinder bores, there was no extruded aluminium on the sides of the saddles, and the bearing shells themselves wouldn't spin when I tried to spin them. He had the crankshaft on his lathe to clean up the journals a bit, but they looked fine to me, the cylinder walls were immaculate, the honing/cross-hatching was in excellent shape. The suction strainer wire mesh was completely intact, there were a few chunks of nylon on the inlet side of the screen, tucked into the bend. The camshaft journals were in good shape, a little polishing wouldn't hurt though. The cylinder head bearing saddles looked to be in good shape, as well, couldn't find the bearing caps to look at them.
The dealer is going to request new main and rod bearings, new rod bolts, a new suction strainer, new oil pumps, and new drive gears this week, the only questions that are still up in the air are how much of this repair will Triumph pay for, and what kind of Dealer / Factory warranty will I get on this overhauled engine.
I've already told the dealer that if Triumph will pay for the whole shooting match, to go ahead and install a big bore kit, and massage the intake ports. Also, he's had dealings with Falicon Crankshaft services in the past, and has no problem packaging up my crankshaft, flywheel, rods, and big bore pistons to have them blueprint and balance the rotating assembly. Hopefully by the end of the week, I'll know where I stand with regards to how much Triumph will pay for, more updates to follow!