Thats a bummer. and because dogs are so cute, we let them get away with it. The good news for you is that there are some options, the bad news, they are not going to be cheap, and not going to be too easy either. I had a 60/40 split, and the springs where shot so, I could not really drive my truck for more than an hour with out starting to suffer so, I researched options. the best cheapest and color matching would be to find a set of buckets from an SR5 t-100, but, good luck with that.

You might be able to find another 60/440 in a junk yard too...

The tundra is wider than the t-100 so the bolt holes dont match up. The new tacoma is about the width of the t-100, but I have not checked to see if it matches up

Corbeau and Recaro make aftermarket seats, and with an adapter from Wedge Engineering, you can bolt them up. (the adapter was about 110 about 8 years ago)

I found (got lucky) a right side recaro orthoped, and because it was a right seat, I was able to get a fairly good deal on it. the increase in comfort is amazing. Super comfy, I can get behind the wheel and stay there for 5-7 hours straight (pretty much drive from full to empty on the gas gauge)