Just a suggestion, before you think that you will be able to free band on amateur radio frequencies, thinking that the FCC would be too busy to enforce any rules, think again.
Amateur radio has not been governed for a long time by the FCC.
The FCC helps out with the most severe problems, K1MAN etc.
The day to day workings of amateur radio is taken care of by hams - mostly by hams called O&O's.
The job of the official observer is to monitor the bands and ensure that everyone using the bands is operating according to the Part 97 - which is the rule book written by the ARRL and Enforced by the FCC.
Think of amateur radio like a Interstate Highway.
Think of amateur radio frequencies like having a commercial drivers license.
Those that has the license can operate the big rig vehicles, while those that just has a regular operating permit can only operate automobiles and light pick up trucks.
Could you operate a 18 wheeler without any sort of knowledge of how the truck works, how to operate it, how to drive on the road and how to back the vehicle up when you get to where you are going? The answer is NO! You might get away with it for a couple of minutes or hours, but eventually the truck will run out of fuel or need maintenance or you will run off the road or into someone else and it will end at the very least with you getting caught.
If you have a force of almost 700k licensed amateurs in the USA and probably another 1 million throughout the world, how long could you operate illegally without getting caught?
The Technician Class license really doesn't give you much, and it really doesn't take much to get, but at least there is a effort put forth to at least try to pass a 35 question, multiple guess test, in which you have to get 70% right! Big deal!
To do what you propose, you would need to operate on either 40 or 75 meters and you would need at least a General Class License. That would require passing two - 35 question multiple guess tests...
The reason why most amateur radio retailers refuses to help non hams is because it would be illegal for them to knowingly sell a radio to you if they thought that you were going to use it for illegal purposes. Modifying it to operate on 11 meters, or use on HF -licensed amateur frequencies would be considered operating it illegally.