Here is my logic on why you should just buy it and run it first before you let anyone touch it.
1) People who buy radios from CB shops and have them perform a "tune" and "alignment" do so because they don't know how to do it themselves or don't have the equipment.
2) Then they receive the radio - they don't know what has been done to it (unless it's explained to them in detail and even then they don't know what that really means because if they did know they would have just done it themselves).
3) They use the radio and decide it works great (or that it sucks) - without any baseline to compare it against because they didn't have a chance to try out the radio before the work. Nor do they have any equipment to actually test after the work to see if everything was done correctly.
4) Then they tell other people how great a shop is because of their experience.
It's like buying a brand new car and before you ever drive it, you send it to auto repair shop behind the Wal-Mart to have them make sure everything is working perfectly and to tune it up and then you drive it around and you think it's great so you tell all of your friends to send their brand new cars to that shop too.
If your radio doesn't work the way you want it to then yes, send it to someone who can fix it for you or tune it the way you want it to sound, but if you don't know the difference in the first place why would you waste your money? They could literally just break the seal on the box and tell you it's been tuned and aligned and you'd have no clue.
The problem with your method is most Export radio's need to be converted to work on 11m. Years ago this was simple when you moved a plastic peg from con1 to con4 was all it took. Today I think they all require some soldering, I don't think it's a good idea to have people that don't know what they are doing soldering on a surface mount board.
Now for radio people that can solder and have basic knowledge of performing a conversion and simple adjustments sure, buying a bone stock radio is a great idea for them.
About 20 years ago we had a local guy that had a wall full of equipment. I bought several new radio's un-touched and had him do a complete conversion/tune/alignment on them. worked out great. Today there is no one local anymore doing this so I buy radio's already done.
Most shops that have good techs are running 30-90 days behind and some will not even take mail in work unless they sold the radio new. This being the case I would rather buy a new radio from say Bob's CB. It gets done right the first time and is shipped once. If I have a problem I can send it back to them.