Adding spell to thief kit which allows dual into kit.

Gel87

Yo.

Lets say i want to dual a fighter into assassin.
That is engine restricted.
But what if i added a innate ability to the base thief kit?
ChangeThiefKit ability:
- Removes itself on use.
- Sets a new global value to 1.
- Summons a invisible creature.

Invi creature script:
IF
GlobalValue(«Kitchange»,1)
THEN
RESPONSE #100
AddSuperKit(«Blablabla»,LastSummonerOfMyself())
SetGlobal(«Kitchange»,2)
END

IF
Kit(LastSummonerOfMyself(),»BlaBlaBla»)
Global(«Kitchange»,2)
THEN
RESPONSE #100
SetGlobal(«Kitchange»,0)
Destroy(Self)
END

Could this work?
Like dualing from Kensai to Thief. Use ability and active class becomes forexample assassin?
Ofc someone skilled could make dialog choice:
Which kit?
1. Assasssin
2. Bounty Hunter
3. Shadowdancer

Etc.