Thx painkiller!
I *did* RTM the manual, but couldn't find *that* particular info.
(of course I could have read it, and skipped right over it - getting on in years I guess...)
I would like to design this without having to use scaling of any kind.
Do the ratios you (ahem, the manual) advise accomplish this?
I have to keep all the texturing in mind too...

Thx again!