I am trying to avoid driving too many holes into my wall

The collection I wish to display is quite large and consists of at least 15-20 swords, not too mention some shorter pieces, and is expected to grow. The idea was to utilze a few of these racks mounted side by side with swords being suspended diogonally behind my collection of shields - which would cover up most of the racks anyway exposing just the hilts and blade tips. Sort of like a classic way to display arms (see picture below) but with a clear Indo persian theme...