Durdraw actually can open the files directly from 16colo.rs (File Open screen, tab to or click on "16colo.rs archive"). You don't need to download them first.

It also includes a program called "durview" for just viewing instead of editing the files. It works quite nicely for browsing the live 16colo.rs archive.

Since Durdraw and Durview automatically convert from CP437 to Utf-8, you don't need a custom font. It's very nice.

For leaving on the screen, you can load the ANSI file in Durdraw, then save it as a Utf-8 ANSI. That converts the character encoding to be Linux compatible. Then you can just "cat" the file from the console.