RichieC wrote:
If I thought about the cost of just one leak. . .I'd pick a clamshell style construction.
It could be worth the extra money.
X2
I have lived in western WA, and now in Kodiak, AK, so wet weather is common, and if I hadn't found my Avion I was real close to pulling the trigger on a NL. There are mostly Bigfoots and NL here because of the wet, and the good job both TC makers do.
I have also lived in SE Idaho, so there is more dry than wet, but bigger temperature extremes. The NL owners here use their TC's year round and are fine.
But Lance and AF are doing well for quality lately too, and you know how to maintain your TC, so I'm sure you will be fine. It all depends how you want to camp. In the lower 48 we camped in a 30ft TT with a 14 ft slide with our family of 6. Here in Kodiak, AK our 10 ft Avion TC on our F350 CCSB works but can be snug. But we make it work, so it's up to you.
As for the water, you said you would be towing, so filling up a few jugs of water to extend you stay, and even a portable holding tank can extend your stay quite well. Sometimes you might think outside the box, and overcome minor things like capacities. Also adding a hitch rack to the front with a box for generator etc as many here have done can help keep your generator safe, and useable without removal.
Good luck on your choice, as ultimately it's up to you. You may even look at used if those prices are too steep. I have been working on my old 1966 TC since buying it, and yet we have it functional. Not super pretty, but very functional, and we have camped winter summer, dry, in Camp grounds, and other places with no problems. All up to you skill, patience and pocketbook. ;-)
Have a great weekend!
Garry in Kodiak, AK