Congrats to you on the new boat. Must be nice. Yes, take pics and post them please.
As for the 10lb anchor. Weight of anchor is not as important as type of anchor. I'm sure it'll do fine. My boat is 16'9" and I use a 5lb anchor on the river (the Larry) and it holds just fine. Just make sure, and this is important, that you have a long anchor line and that in between the line and the anchor you have 4`of good quality chain and you`ll never have a problem.