Here I am!! LoL.....
Actually, they do look quite a bit alike. I personally think this snake is a sunglow. I might be somewhat optimistic in my assessment, but the OP's snake has narrow saddles and these saddles are quite distinct. A straight albino will look more faded than this. This boa also appears to be about 4-5 feet (so approximately 1.5-2 years old). Is that accurate?? Pictures can be deceiving...
An albino boa that size would not look this bright. A sunglow would. Tfpets boa appears younger and, therefore, it would appear brighter/more orange. Also, a sunglow is a snake that displays both the recessive gene for albinism and the co-dominant gene for hypomelanism. Hypo boas often have narrower saddles with a sort of "butterfly" or x x pattern. The OP's boa displays this trait.
Having said that, there is no way to be 100% sure until the animal is bred. However, if you only paid $65 for your pastel and the guy is willing to do an even trade, I would snap that boa up in a heartbeat!! Sunglow or not, it is a super nice animal and $65 is a steal for either an albino or a sunglow!