yeah, definitely up for it! in his canon, they're not exactly zombies because they arent undead, they're just people who had their brain like rapidly degenerated and so they go slowly nuts and get really really aggressive, and he'd (sort of) been working with people that were trying to make a cure, so he'll have sympathy for wanting to try to get a cure for these people

also, his friend made thomas shoot him when he got sick so he wouldnt have to deal with going crazy 8|||| so yeah he'd like to help kier if he can. also THE LESS PEOPLE THOMAS HAS TO KILL IN SELF DEFENSE, THE BETTER????? IN HIS OPINION???