Multifamily Access Control / Door Replacement

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Wondering if anyone has a contact/website for ordering replacement glass doors for a commercial building? I'm renovating a multifamily building and there is no access system just the traditional key. I'm finding that to upgrade to a proximity tag or intercom system type entrance access system for tenants I'll need to replace the doors with something that has the electric/magnetic strike.  Not sure if this is something that I'd want to order online and DIY but the quote I received locally was quite high, seeking options! 

Open to any other ideas on upgrading access systems if there are any experts in the community, thanks.