Howdy Bruce
Wilesco's home website lists their engines for sale with the specs you are seeking.
From the home web page, which should auto-translate for you, you'll want to click on the left-most choice "Stationary Steam Engines" on the red options bar near the top, and that will take you to the index page for the selected option. Then just click on the picture of the individual engine that you are interested in, and that page will come up. About half way to the bottom of each individual engine page is a set of graphic representations with dimensions for each key item identified!
Like this one for the D-20:
https://www.wilesco-shop.de/stationaere-dampfmaschinen/dampfmaschine-d20-elektrisch-d202.html ...... and this one for the D-32:
https://www.wilesco-shop.de/stationaere-dampfmaschinen/dampfmaschine-d32-elektrisch.htmlWhoops ... looks like Jan beat me to the punch while I was sourcing and typing .... but here ya go anyway.