I always say that there is no harm in looking. Checking with 3-4 dealers will only take your time... If you go on your day off or sometime you are free then it's all good.
Check it out, you might be surprised. You might also be disappointed and decide it's better to wait.
Either way it doesn't cost you anything.
Bonus: When you have the appraisal done, ask for a copy of the CarProof from the dealer. Most will run the verified CarProof report during the appraisal process. Chances are they will say no, but you might get a dealer that will print it out and give it to you (for free); to be perfectly honest you could probably get this from any dealer that ran it if you make a big enough of a fuss. Having the CarProof on hand will improve your negotiating odds.