In reply to hatman:
Here's some info - in no particular order - that you might find interesting (or not) Pick out what might help you.
My visit was in July/Aug 1981. Already it was quite a popular objective - when we arrived in Watson Lake a Belgian team had just come out. While we were there a French pair and a British pair (Ian and Louise - don't know second names) arrived separately. For our approach we took a bus to Tungsten and a helicopter from there right into the Cirque. I don't think this is an option now. We flew out by float plane from Britnell/Glacier Lake to Watson Lake. Both the French and Brits failed to climb the route.
I know two teams who went there in 1980. One was Nipper Harrison who was a Bristol/Pembroke leading climber of the time. He succeeded but failed to free climb the crux - this was an E5 leader. The other will be more interesting to you. It was Alun Hughes, now film maker - Stone Monkey among others. They used the Nahanni approach in small inflatable rafts they'd bought in a hardware shop somewhere. They also succeeded but I can't remember details of their ascent. I suspect it was done in the original style. Two American s also arrived during our stay. They were climbers but hadn't come to climb the LFT - just to touch it! They were also canoeing/rafting the Nahanni.
We climbed two other things during our stay. One was the FA of a one pitch crack on the big wall just behind Fairy Meadow - we placed a thread at the top of it where it petered out, to get down - I think a photo of it featured in the American magazine 'Climbing' annual diary a few years back, noted FA unknown! Also we climbed a route on Middle Huey Spire (not West as I said above). This turned out to be a 2nd ascent, not a FA as I met the FA-ists in the Bugaboos a week later.
I'm sure it'll be a fantastic adventure. I'd re-iterate - at the expense of repeating myself - don't underestimate the weather problems and even more importantly don't underestimate the difficulty of the route. I realise now that you've posted your profile, that this shouldn't pose too much of a problem to you as you've done this sort of thing before - but again saying HVS/E1 with a short section of E2 is drastically understating it. Don't saddle yourself with a partner who isn't up to it. Maybe you've just translated American to British grades? I take it you are American? In 1981 E grades were only just appearing so I can't really give you an idea even though we free climbed it, but I'm sure Adam is right with his assessment of E3. Jonny2vests who posts here reckons E3 too.
It's also worth noting that in 1981 there was no rap route back down the top of the route, only from the midway ledge - the descent was climbing/rapping down a horrific couloir to the left of the tower. This meant that nearly all ascents at the time were over two days with a bivvy on the middle ledge. Given the fickle nature of the weather I'd certainly advise against this. We climbed it and descended in one long 21 hour day - not very fast, but the descent occupied a lot of that. If we'd bivvied on the ledge we'd have woken to a couple of feet of snow in the morning.