I've never used them, so I can't vouch for them, but it seems like beam spring keyboards are available. Have you tried any of these? https://www.modelfkeyboards.com/store/
The VT1xx keyboards used linear switches, you may want to look at modern mechanical keyboards with linear switches as a rough approximation. Having tried typing on one in a museum, I recall the VT1xx as relatively scratchy compared with more modern keyboards, although that could have been a wear and tear issue.
The keyboards of the VT2xx/3xx series are awful, and the later ones had rubber dome keyboards which are among the nicer rubber dome keyboards I've tried. I own both a VT320 and VT420, and managed to get a new old stock keyboard for each.
craftkiller|22 days ago
threethirtytwo|22 days ago
blame-troi|22 days ago
intrasight|22 days ago
The IBM Type M was and still is my stand-in.
ch_123|22 days ago
The keyboards of the VT2xx/3xx series are awful, and the later ones had rubber dome keyboards which are among the nicer rubber dome keyboards I've tried. I own both a VT320 and VT420, and managed to get a new old stock keyboard for each.