Adeno-associated viruses (AAVs) are the delivery vehicle for your nucleic acids. Bacterial DNA (or mouse DNA, human DNA, whatever) would be the thing getting *delivered by* AAVs.
So when you ask
>use bacterial recombinant DNA to be inserted
How are you planning on inserting it? That is the part that AAVs help with. So you would need to replace AAVs with something that can carry more DNA. There are options people are working on, like polymeric or lipid nanoparticles, or other types of virus particles.