i feel so bad for you hon!
i don't normally give advice about this kinda thing, i think people need to make their own choices, but i will say this:

lying about his age is ridiculous, why like about 2 years? make a big lie, a good one, he should have said he was 8 years younger or something.

besides that, everyone is right he isn't the only dom in the world.

and this is my big thing, imho in bdsm TRUST is the most important component. i mean how does this guy expect you to let him tie you up, spank you, (fill in your favorite activity) if you don't trust him.
if i don't trust someone i won't even sleep with them, let alone allow them to dominate me, and put me in a situation for potential danger. bdsm (to me) is so much more personal than sex, if i am going to submit to someone and try to please them, and bare my soul to them, i have to trust them. if he isn't concerned enough to be honest with you, how will he be concerned enough to listen to your safeword or respect your limits? you know what i mean?