I can’t see one of these contracts happening so not realistic IMo

Basing this off entirely reports and market estimates, not just my gut, ya know? But if you want to see where the numbers come from:

Nuke's Figure: people are expecting 5-6 million, most saying less than 6. I went on the high end here.
https://coloradohockeynow.com/2022/07/08/valeri-nichushkin-contract-avalanche-getting-close/
https://theathletic.com/3372735/2022/06/19/avalanches-valeri-nichushkin-is-having-himself-a-playoffs-and-earning-himself-a-payday/
https://twitter.com/KevinWeekes/status/1545873795164082176
https://dobberhockey.com/2022/05/24/free-agency-2022-salary-projections-for-the-top-150-free-agents/

Sturm: Might be the closest thing to a reach I have on here, I'd be willing to say he maybe make it to 1.75/2 at the absolute top end of the spectrum, but 1.3 is typical for bottom 6 players of his caliber getting their second raise. He's a 4th/fringe 3rd liner with limited offensive upside on a team controlled RFA contract, nobody's gonna offer sheet him, he's due for a raise but nothing crazy.
https://dobberhockey.com/2022/05/24/free-agency-2022-salary-projections-for-the-top-150-free-agents/
https://cdn.theathletic.com/app/uploads/2022/04/19123243/Screen-Shot-2022-04-19-at-12.05.25-PM.png

Lehkonen: A projected *offer sheet* for Lekhonen, more or less his absolute top end ceiling value, is projected around 4.3 million. 4.0 million to stay with the club that controls his rights is more than a fair estimate.
https://theathletic.com/3388856/2022/06/30/nhl-offer-sheet-candidates-2022/

Brett Kulak: projected at 2.0 million to stay with the oilers, bottoms out at 1 million, 2.3 million bump for the added open market value to sign with a contender.
https://theathletic.com/3262837/2022/04/22/oilers-brett-kulak-contract/
https://dobberhockey.com/2022/05/24/free-agency-2022-salary-projections-for-the-top-150-free-agents/

Vatrano: 2.5 million to remain with the rangers, 4.1 million projected on the open market. I'm ballpark here.
https://www.foreverblueshirts.com/new-york-rangers-extend-frank-vatrano/
https://dobberhockey.com/2022/05/24/free-agency-2022-salary-projections-for-the-top-150-free-agents/
https://cdn.theathletic.com/app/uploads/2022/04/19125344/Screen-Shot-2022-04-19-at-12.40.38-PM.png

Georgiev: Closest thing I have here to an overpay, but that extra million is like what was tacked onto Grubi's contract when he came here. Dude's due a raise, but again, an RFA, team controlled. Joe has shown he doesn't like paying for goalies.
https://cdn.theathletic.com/app/uploads/2022/04/19125707/Screen-Shot-2022-04-19-at-12.38.56-PM.png

Ryan Murray:
Dude was a healthy scratch in the playoffs, for stretches at a time in the regular season, or was injured. He doesn't have much leverage, but if this one tears you up feel free to switch him out for any of the other million dollar/veteran minimum defensemen lmao.

I am genuinely curious, it seems like you did just pull this out of your ass/going off of your gut, but which of these contracts projects as unrealistic?

Nevermind each source I sent to you, but Each of these contracts was based off of Dom Luszczyszyn and Evolving Hockey's projection models, as well as currently reported numbers. The only one I really "guessed" on was Murray, but if you're that torn up over a top7 Dman then like...buddy what??