These figures are taken from a series of articles published in ‘Coin Monthly’ in August, September and November 1972 and possibly other months as my photocopy only covers up to 1946; ‘Major Varieties of UK pennies 1902 - 1967 giving estimated mintages ‘ by V R Court. I probably have the originals in my workshop, and could check over the next few days.
There are also articles in ‘Coin Monthly’ in 1976 and 1977 by A R Alexander which you may find interesting , though like the above mostly dealing with 20th century pennies. I also have a photocopy of an article by Mr Alexander where he discusses a 1903/2 penny he has recently acquired. Not heard of since, afaik. Again I am likely to have the original magazines in store and will see if I can find them.
I would think that the 1890 penny is worth the money if it floats your boat.
Jerry