I'm so excited for you! I'm sure you will do well in your business venture, as you have a quality product and the ability to provide custom work just can't be beat.
Get all of the tips from your show buddies and take notes at all the shows you go to. The realestate is pricey, but as mentioned, the big shows get the traffic and also have a better heeled clientele. If you go to the less expensive shows, you'll get the smaller budget traffic. Your work is noteworthy and hopefully the big guys such as Orvis will take notice and place orders. (A wholesale headache may be on your way.)
If you can get an ad or write up a week or two before the show to flag that you will be there, this may help traffic to YOUR booth. Check out local publications that offer free mention of activities, etc.. Also add a blurb about "Great Father's Day gift" and sell gift certificates to "reel" in the sale, as if you can get $50.-$100.+ on a gift certificate, this will entice the future order. Print something up that looks decent, doesn't have to be expensive, but looks unique. (Example: Add a business card that's tied w/ natural jute string as a 3-D effect. Look at how they package gourmet/designer gifts using natural and inexpensive items.)
Have poster size photos made mounted on foam board of favorite pieces to hang. This can be seen from down the isle and gives you something to show if the inventory sells. A digital picture frame can show off photos of your work and is more eye catching than a hardcopy portfolio, also visible from 10ft. away. (Plug in to recharger!).
Wishing you the BEST in your creative and financial pathways!