Hi @wesrickman
Here's the [https://download.lenovo.com/pccbbs/mobiles_pdf/tp_t495s-x395_hmm_en.pdf|hardware maintenance manual] for the laptop.
Go to p.94 (p.100 of 114 pdf numbering) to view the procedure to remove/replace the keyboard.
Search online for [https://www.google.com/search?client=firefox-b-d&q=lenovo+t495s+keyboard+|Lenovo T495s keyboard] to find suppliers that suit you best. (examples only)
***''Important:''*** ''Before commencing any work on replacing the keyboard'', go to p.68 (p.74 of 114) and follow the ''Disabling the built-in battery'' procedure.