Agreed, the second fiberglass helmet he also has for sale is a major red flag. The ears on the supposed SGB helmet look horrible. There are much better options out there.
On a side note I have seen more and more Rotocast TK buckets on ebay as of late. I believe TE did a small run of rotocast helmets (good luck finding one) and kwdesigns does a legit rotocast TK bucket from his own sculpt. Other than those two, a fiberglass TK bucket is generally not what it claims to be.