Most good farriers should have experience with the young'uns and know what to do. Go ahead and contact your farrier and just tell him the situation that you have a foal that needs some foot work and he does not pick up his feet perfectly yet. Lots of them can work with a horse to get them comfortable and confident having their feet messed with. Most good farriers are trainers too. (as far as messing with their feet goes)
Don't worry about the farrier. =) He/she would most likely rather mess with a squirrely 8 month old than a 2 year old that stands perfect but now has a myriad of problems to fix. You might be suprised at how well a foal will do for a farrier even if they aren't so great for you (we just get really good at convincing horses that we aren't so bad-it's our JOB!). If you ever have another foal, you should consider having it trimmed from a couple of weeks after birth on, as most farriers will work with you on prices, and that's the BEST time for ensuring future soundness by preventing funky leg angles and excess growth, plus, the foal accepts it as just another part of life and is much less likely to object.
Personally I would wait tell he's comfortable picking up his feet for you cause it isnt the farriers job to train your horse really if he's pretty good they may not mind handling it but I know the farrier at our barn charges more for the more difficult the horse is and I can understand y as I do my horses feet and its alot of work that these guys make look so darn easy but it wouldnt hurt to ask your farrier how he feels about it either he may not mind at all alittle trim wouldnt hurt the baby
Thank you very much for all the wonderful advice. I feel a lot more comfortable with the experience now. I will have to talk to my Farrier.
I definitely would have worked with him more, and even had his feet trimmed when he was younger, if I had owned him. Unfortunately, I just bought him about a month ago and although she imprinted him at birth and messed a lot with his feet then, she didn't do much after that with them. So now it is like starting all over. He is a very well behaved young man, he is very much a sweetheart. He just gets nervous.
Just tell your farrier upfront what the problem is and get his opinion. I got a yearling, which wasn't handled at all (no hoofs picking for sure). My farrier gave it a shot (I was honest telling him that she may not be easy to do). We kept her occupied with grain during the process, but he did her.