Make sure you're aware of Lapierres parts policy (no parts supplied to non original owners). If you buy one 2nd hand and break any part of it; you're screwed.
That's the reason I'd not buy one (new or used).
Otherwise just go out and demo a load of bikes. It's fun too.
That's not even true is it? Just go into any bike shop, give them a hotlines stock id and they'll order you the part.