Given the choices on offer, I would go with 5200s/DSW and trade up to at least a 5200 centre as quickly as possible - 5200s are great speakers, most SL models should be upgradeable to SE when the upgrade bug bites and are EBA compatible also. The weakest link in the current suggestion is the centre, not the mains. Given the centre is probably the single most important speaker in a multichannel setup, I would not skimp on this.

Another purely practical reason to not go for legacy speakers currently is that most of the drive units are no longer available for repairs. This is very sad, as I love some of the legacy models, but true nonetheless.

Anton, which source/processor did you decide on in the end?

HC: 861v4/ID40/LPS, DSP5000, DSP5000VC, DSP3100, SW1600, HD621, Oppo BDP-105, Sony VPL-HW55ES
2-Channel: Oppo BDP-105, TEAC VRDS-7/Trichord Clock 3/PSU, 551, Quad 303, Harbeth Compact 7ES-3, Kimber cables, Russ Andrews mains and supports.
Previous Meridian: 5000C, 5200SL, 7200.2, 6000, 562V.2, 568.2mm, 800v4, 808.2i, 818v2/v3, 861v8, 502