Aye, these are the standard fit wheels from the 205 SE, fitted with 205/60/16s on 6.5Jx16inch wheels.
If the space saver came from a 204, the equivalent would be 205/55/16 on 7.0J wheels which results in a slightly smaller rolling radius (I think!).
I've got 17inch winter wheels from a 204 for my 205 Sport which seem to fit OK, so I would have thought a space saver from the same car would be OK, but best to try if possible or at least confirm by part number.
Nice car, by the way, is that Tenorite Gray, as was my 204 Estate?
Ernie