Thanks @Paul2009 . Your first suggestion is something I'd like to do but can't workout. I want customers to put their items in the basket and be able to send their order to me without using checkout. I know (based on reading in this forum) that the checkout page itself can't be edited so even though I like your suggestion to add a button, I do not know how to implement it.
I would rather avoid using a scheduler as I might be free, but the kit that i need to deliver may not be and it could cause problems.
It feels at this point that Squarespace doesn't have a good solution for a business like mine.
Thank you for the support.
Kind regards,
Antony