Kreider is basically this year's Evander Kane. Kane had one 30G season prior to his trade to SJ which Kreider never has done but Kreider has hit 20+ the last 4/5 years (and the one he didn't he would have but that bad injury). So Kreider is a little more consistent but hasn't hit the high notes of Kane.
With that said it would be a 1st (top 3 protected), Pool Party, and another lower prospect or pick, similar to the Kane deal.
Is it the right time for the Oilers to do this deal? Maybe. They can always flip him at the deadline for an equal or maybe slightly greater haul if McDavid enhances his numbers. They need a boost and want to make the playoffs.
Kreider is a prime deadline candidate if his production doesn't improve. He'll have PP time as the goalie screener with Panarin/Ziba/Trouba and probably mostly Buch and occasionally Kakko/Kravstov/Chytil.
He'd be perfect for Colorado and put them over the top.
The Rangers have said at this point he'll be at camp so a trade isn't likely.
They'll have some other UFAs like Namestnikov who is going to be dealt, Fast who I and Rangers fans love but may be priced out (thank you Jim Benning and Lou Lamareillo for ridiculous terms to 4th liners lol) and Strome who I doubt will be qualified at his price so that money may be used to give Kredier a $2 million bump. Beleskey is also off the books.