I'm sure Dragonballs or someone else will chime in on this if I'm wrong but not all tegus hibernate. Just because its a Arg B & W tegu isn't a guarantee that its going to hibernate. Yes it is that time of the year but I have yet to see a tegu that didn't "sexually develop correctly" or breed viable offspring because it didn't hibernate. So through out the season there are some still available may be fewer but still available. Although,..I do agree Varnyard has some of the best stock (B&W and High Contrast Reds) but there are also other breeders, and yes he still has some that are available.
My tegu Dino is 2 yrs old, sexually mature and hasn't hibernated a day in his life. At the most,..he'll go to sleep for a few days, may even skip a couple of meals but then its back to normal. He's has never been out for 3-4 months straight like some other Gus' do.
Check out the top 2 Gu sites thetegu.com and tegutalk.com and you'll pretty much get the same answer. Some do hibernate and some don't especially with people that have more than 1 Gu of the same type (or different) that hibernate.
Depending on what type of Gu you're looking for Tyler_Royality Bobby over at Varnyard herps and Tegu Talk Bobby also has a clutch of new hybrids (1st time no others like'em) available. They're the All American Tegu, its a 3 way cross between the Giant B&W, Red and Blue Tegusvery nice
my baby arrives on Tuesday
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Also like Dragonballs said he has a Blue clutch due in a little while here,...I'm waiting on one of those too.