Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
I think if you can hire a crossfitter to wipe it down once a week you would be all set....
Silicone spray isn't quite as oily as WD40. I'd go with that and then wipe it down once a week or month and reapply a coat as needed.
Kind of on topic...I acquired a used press several months ago and the gentleman I purchased it from must have owned stock in in a spray adhesive company. Does anyone have any trick to removing lots of spray adhesive from all over a press?