cloudsatall ... it is completely natural to be nervous and axnious about this...
if i was you i would be a mess too... but i think the best thing to do is to just try to let things happen, try not to think about it... like when i am going to a dr appt or dentist i try to think about anything else to occupy my mind until im sitting in that chair talking to the dr... or him ripping a tooth out... so that i cant back out.... and so i dont breakdown before i get there...
its still a little ways away before your meeting with him... so if you stress alot about it it could make you feel bad right...?
i would try not to make any expectations... i dont like making expectations....
just try to let things happen... im sure the guy is going to like you, but if a relationship evolves is something that is up in the air... you have to feel comfortable and try to be yourself for that to happen, but try not to make too many expectations because this will just put alot of pressure on you right..? and then if the expectations dont happen it will make you feel bad...
this guy sounds like a nice guy, you sound like a nice girl, you 2 will be friends if nothing else... but it seems like you both are looking for something more... he has seen your pictures, you have seen him too right... he still wants to meet you, so that should mean that he is atleast a little bit interested i would think...

try to relax, try not to stress about it... try to just let it happen naturally...
i think everything will be fine

as long as you dont stress too much right?

im not sure if that makes sense... or if its good advice... but its what i would try to tell myself...

i think this is agood thing for you, try not to over think it