well this is one for experience for ya , defo do not buy the replacements yourself
For the future I would take your wheels to a DECENT local alloy refurb place to have tyres put on , they are more careful having just refurbed rims they are not going to want to have to redo their work.
This is what I do with all my tyres that I buy mail order , they damage them they fix them no questions , never had a problem with damage to rims
Hope you get all sorted