Need help to create a quest that would recruit followers in a dungeon as a captive.

[Inventorybongo]

Hi, I've been using the creation kit, and I've been creating a follower. I want to create a quest that imitates the dawnguard rescue quests (DLC1RH06), which spawns furniture BoundCaptiveMarker that bounds an NPC. I want to use that idea as an introductory quest to a follower, which you can free the NPC as a temporary follower, which you can then recruited the NPC as a fully-fledged follower. I have tried some papyrus coding but my progress feels like I always come back to sqare one. I would be grateful if anybody give me some advice, thank you. 

This is the embarassing script I tried to used, but it seems it goes no where.

Scriptname MXMeeting extends Quest  

ReferenceAlias Property Alias_TeshCloakingMessage Auto
ReferenceAlias Property Alias_Follower Auto
ReferenceAlias Property Alias_CaptiveFurniture Auto
GlobalVariable Property MX00TeshFollowerRecruited Auto
Quest Property MyFollowerFramework Auto

; === STAGE 0 ===
Function Fragment_0()
    ; Start of quest — move follower to furniture, restrain them
    Actor follower = Alias_Follower.GetActorReference()
    ObjectReference marker = Alias_CaptiveFurniture.GetReference()

    if follower && marker
        follower.Enable()
        follower.MoveTo(marker)
        follower.SetRestrained(True)
        follower.IgnoreFriendlyHits(True)
        follower.EvaluatePackage()
    endif
EndFunction

; === STAGE 50 ===
Function Fragment_50()
    ; Player has freed the follower
    Actor follower = Alias_Follower.GetActorReference()

    if follower
        follower.SetRestrained(False)
        follower.SetPlayerTeammate(True)
        follower.EvaluatePackage()
    endif
EndFunction

; === STAGE 70 ===
Function Fragment_70()
    ; Trigger ForceGreet scene (you set up in the CK separately)
    ; Optional: Add logic to check location or triggerbox
    ; You could instead use a triggerbox script for this step
EndFunction

; === STAGE 80 ===
Function Fragment_80()
    ; Recruitment is now allowed
    Alias_TeshCloakingMessage.Clear()
    MX00TeshFollowerRecruited.SetValue(1)
    MyFollowerFramework.SetStage(10)
EndFunction