Trade my Kelce in full ppr Dynasty?

Hey what’s going on everyone? Hope you are all doing well.

Should I try to trade Kelce before his value starts to fall or hold on to him? He is one of the elite at his position but he is 30. If I trade him, what should I look to get for him? League details and roster below.

I am in a 12 team league, no superflex, we start 1 qb, 3wr, 2rb,one te, 2 flex, 15 bench, 2 IR Spots, 5 taxi.

Qbs: Josh Allen, Jared Goff, Taysom Hill, Justin Herbert

RBS: CEH , Mack,Hines, Breida, Damien Williams, Darwin Thompson, Justice Hill, A.J. Dillon, Salvon Ahmed

Wrs: Metcalf, Thielen, Gallup, Anthony Miller, Robby Anderson, Josh Reynolds, Tre’Quan Smith, Brandon Aiyuk, Laviska Shenault, Quartney Davis, Joe Reed.

Tes: Kelce, Ian Thomas, Albert Okwuegbunam.

I have one draft pick for each round for next year’s rookie draft, 4 rounds in total.

Where should I try to improve my team, if anywhere?

I was offered Ertz, Jarwin and Shepard for Kelce but I turned that down. Another member in our league is offering Deebo Samuel in a trade for Kelce, but he also has Hopkins and Golladay, so I should I try to aim higher? He doesn’t have any tes that I would ask for in return though.

Any advice is appreciated, thank you.