This is a situation which can have many possible outcomes.... all dependent on how this person first addresses us.
For our company, most of the signs needing artwork/design or some kind of proof are local people, usually within a 25 or 35 mile radius of our shop. Again, this is first time customers, I'm speaking about. I will try to decipher as much of their information in the e-mail I can, but before giving out drawings or proofs, I'll give them a price range. If that suits them, I ask them if they're ready to send a deposit. If they say they need to see something.... kinda like they are testing to see if I can cut the mustard, I then tell them to come into the shop and we will walk through their needs and wants. If they are willing to take that time and get off the keyboard for their own sake, then I am willing to take the time to educate them when they get here.
As for their needing a vote of confidence that we can do their job, they will see the many signs and samples we have around the building in all stages to get a feel for our capabilities. They'll see the flatbed running or the inkjets going, they'll see someone working on signs and someone putting signs together, so they get a feel that we're a real production facility and not just another push-button operation. We truly know what we're doing. After I get the price down pat, if they insist, I will do some hand drawings/thumbnails and this alone usually 'WOWS' them. Not many people in sign shops can draw anymore, so this usually seals the deal. We again, will request the deposit and if they still balk, I'll just tell them to send me the signed, dated quote along with the required deposit when they see fit. Bid them good day and let them leave. This whole in-shop portion might last 15 minutes. It's up to you to control your time in your shop. Let them ramble on about nonsense and you'll waste 1/2 hour or more on things which have nothing to do with getting the job. Keep them focused on making the deal and take control of your own destiny and you'll stop wasting time on the internet.
Now, this all depends on if you have a place for them to come visit or not. If you don't have a shop or something professional looking, then it's a little harder, but that's just my opinion. A long time ago, I had clients coming to my house, which was my office so-to-speak and that was always wrong in my opinion. I always felt like I was entertaining and not selling. How many here go to the dentist in someone's dining room or get your groceries at Eddie's house ?? Nothing wrong with home-based quarters, but it still sometimes hampers your goal. Then you will still need to keep it as much internet as possible or meet at Starbucks over a cup of coffee. That can get quite tiring if you only meet 3 or 4 people daily. You're always on the go, so when do you get work done ?? We might have two people in a day come by..... we might have 20 in a day's tome come in. Lately, with the bad weather, not much foot traffic is taking place, but it's picked up in the last two or three days like crazy.
The last part of this equation is.... if you're chief, cook and bottle washer, then that too makes it harder as your time is precious not to mention completely chargeable or you become non-profit and that ain't a good thing. My part is.... all of the employees' times are valuable to me, but mine can be spent doing whatever from filling in on anything to stoopid installations to coming on here at s101. My time is my time.