I agree with other comments. If it was from two het caramels and was a possible het, then I'd suspect it was probably a definite het. However, lots of normals can have that "het caramel look" to them w/o being het caramel. Same with the "het sunkissed" look. If he had known sunkissed lineage, then maybe he could be a het.
I would try to breed him to something caramel and sunkissed and see, but at the same time probably expecting him to not be het for either. But you never know, and regardless if he is het for anything, he sure is nice looking. And the important thing is that you like him - that's all that matters IMO!