Rosecrance Webfonts

Can we please request Avenir and Adobe Caslon Pro as webfonts for use on the website? Adobe Caslon is available via Typekit (https://typekit.com/fonts/adobe-caslon), but Avenir isn't available unless we purchase a copy, from https://www.myfonts.com/fonts/linotype/avenir/ or https://www.fonts.com/font/linotype/avenir

They recommend Arial and Times New Roman when those are not available, such as on computers or in Office documents, but I'd much rather use the actual webfonts they recommend.