When I saw your website, I wondered why you would want to implement this with a shop template if you don't integrate a shop.
I would rather advise you to use the "Barber" template.
There is another option for Allura:
Install a pure Joomla installation, then still install SPPB and only the template "Allura". You won't have any content, but you will have the template. You install the quickinstall of Allura on another subdomain. You then have the option of exporting individual existing pages.
But I would be careful with this, because a lot of the content in the samples is linked to EasyStore.
Just try it out and you'll see if you're happy with it or if you need to switch to a different template.