how much is a full rainbow glacier dragon worth

yes i just got reminded they existed from another post (gorgeous dragon i just didnt wanna ask them because im not offering and idk if itd be rude)

rainbow glacier and rainbow galaxy dragons are 2 of my aj goals but im a free to play player whos also kinda Broke so id just like to know what its worth so i can work towards it..? maybe? umm also whats a rainbow galaxy worth lol same reason