Go to dealer #3 and get what you want. Obviously there is a reason you want that certain unit and he has it, plus you mention they have a good parts dept. and are slightly better then average overall. Is there a reason you don't want to deal with them? Personally I don't care if I demo a trimmer or not, it's not an expensive piece of equipment and if I don't like it I'll sell it and move on to another model or brand.
Up North Yard & Drive