A person can go nuts with offers, however this one looks acceptable but there are more than one that is more cheaper, and I would focus on jack size and wattage.

I understand this type of buying, a cat in a bag type deal, so what you can is return it if it doesn't fit.

Importantly, look for GF65 Thin 10UE and 180W, also it seems jack barrel is different on some models, go figure.