True. In my case, such learning would be well beyond what little addled grey pulp is left of whatever had passed for a brain.
However, Daughter is a highly qualified IT designer, to whom CAD seems to be child’s play. To my mind, a “web designer” is someone who knits webs to sell to spiders, which I will then stamp on or bat with newspapers. And thus, the world goes round.
My initial query was based on the idea that if I could get her to do the CAD stuff, and I bought a good quality printer, perhaps some sides and ends for several varieties of coach (e.g. my favourite theme - Midland six-wheelers), might be feasible, doing a few for myself and selling a few more.
Not sure of the financial side though.