I would settle for the portrait of Ronaldus Magnus on the next edition of the $20 bill, replacing Andrew Jackson.
Those of us who were not fans had to tolerate FDR on dimes, and Ben Franklin was bumped from the fifty cent piece for JFK.
I believe he should go on the $1 coin the government has been trying to get us to use for several years. One reason that the coin never caught on was that the average American thought that either Susan B. Anthony or Sacagawea deserved the honor (not to mention that no one really wanted to look at SBA's sour puss every time he went to buy a newspaper). With Reagan on the coin, it would be a hit, and Reagan would be in good company with George Washington.
I'd like to see a special denomination of $40 for our 40th president, a commemorative $40 bill printed in glorious red white and blue.