centos 6.5 as a custom distribution on linode

I need someone with experience in linode, they have removed centos 6.5 as the default template, but it is the version that I use without problems, now they only offer versions 7 and 8, but there is a method that allows installing the version that I need, that is exactly the job, beware the method of importing an .iso from centos 6.5 does not work, it is a different method from the one that exists even in a linode tutorial, but it is an unknown subject for me, thank you very much.