Shazzy, a long time ago, when Sydney was still a baby, I worked for a few months at my Uncles business, he does chipping. His partner is a vet.
Here in Canada shelter dogs are chipped when they are adopted. Jasper was 4 months old when we got him and he was chipped. I got to go in back with them (because they know me) and he didn't even flinch.
Not that I'm telling you to do it now, no harm in waiting, just want you to know that it's really not as bad as it seems. The needle is big but if the vet is good they won't feel it. Really. :)
Oh, also, he's freaking adorable and I'm not usually a fan of the Chinese crested. Yours is too cute though. Congrats. :)