I do not see CAR entertaining dealing Pesce, at all, even for a player like Laine, until there is resolution on a Hamilton extension. Pesce is their only long-term top 4 RD, signed very reasonably for the next 4 years.
IF they re-sign Hamilton to an extension, then perhaps you could think about dealing Pesce, but certainly not Pesce + Necas. Trading 2 extreme value contracts (Pesce at $4M x 4yr and 2 more years of ELC for Necas plus expansion draft exemption) for a mega contract to be (Laine needs new deal)is just stupid in a flat cap world, unless you’re getting a McDavid or the like.
You want Necas? Well, you need to take Skjei or Niederreiter and you’re not getting Pesce. You want Pesce? You’re not getting Necas.