Hand flown, FD off, OEI, max xwind, intercepts to ILS or NDB followed by descent to minima (by Centaurus' definition, this is all single pilot IFR).
Repeat ad naseum.
Now try with all the EFIS U/S.
That'd make me feel warm and fuzzy at the end of the session if I did a good job. Chances are I wouldn't.
I'd also like the chance to experience an analogous situation to the DC-10 Sioux City and A300 Baghdad detail i.e., complete hydraulic failure.