You can still get a "doublespaced" appearance by saying something like
\titlespacing*{\section}{0pt}{.3\baselineskip plus .2\baselineskip}{.2\baselineskip}
for the section titles. For oldstyle numbers I'm afraid that no Times clone usable with pdflatex has them (Times was actually born without them, I've looked at the first copies of *The Times* published with it).