=>Hi. I am wondering if the HK Porter Company put out any 0-4-0 standard guage =>Porters???
Yes. Porter built locomotives to whatever gauge the customer specified.
=> Also, has anyone ever done an 0-4-0 standard guage HO Porter?
Not that I know of, but I don't know everything (as I am repeatedly reminded by people concerned for my welfare.:-) An HOn3 Porter could be regauged; major part of the job would be (re-) building the cylinder saddle to accommodate the wider gauge.
=>Ifso, can you tell me if anything is on the web for info on same. Thanks. John =>Hudson.
Have you tried googling on Porter Locomotives or Porter Locomotive Company or some such?
Frankly, I don't see why people ask for web-resource information when there are so many good search engines available. (Another good one is dogpile.com) If you've searched and found nothing, the odds that someone else will have a resource are practically nil.
HTH