if you are going to lpg it 3.0 is easier and 3.2 complex due to lambda setup (unless you call experts here)
3.2 is easier to LPG due to more space to mount injectors...
It's a lot easier to LPG IMO.
.... and for others reading, for me 3.2 is easier to own for the same reason, that being far less clutter under the bonnet. Icv sai cruise box egr, throttle cable gubbins, plug leads and coil PAC all missing.
However coil pacs are expensive, although far easier to replace, and maf's less reliable. Pedal trick is far more help with obd2 codes that also identify which cylinder is missing. But then there is the pre cat issue, although that's more irritating than anything.
Face lift interior suffers with the tactile finnish scratching off, but personally I don't like the pre face lift door cards.
Swings and roundabouts I suppose. But I prefer the face lift shape so that's that...for me.