Nobody can answer that for you. No item has much in-game value any more, with the economy shutting down, so a trade is only a "good" one if it means something to you. I would say that most people received both blocks in the recent feat, so there may not be many other players who have one and lack the other.
Are you saying that you want an sb1? or a t1? If so than I have one of each and will trade one with you, for really pretty cheap, I've listened to it and it's nice, but I'm happy to let someone else enjoy it, since the end is near.
I would basically just like some cherries I would also take bubbles or spinach or eggs, basically I'm wanting to make lots or rainbow juice and collecting ingredients for it.