I would be very cautious with ordering this with the Hot Toys Bespin Han waiting in the wings. I would be surprised if there wasn't a deluxe version with a carbonite block included.
You can pay $225 for SSC's version on discount, or buy HT's version for $330 for the figure and the block.
This Sideshow Carbonite is the ROTJ style (even though it includes an ESB style display option.) I'd 100% assume the HT version will be ESB style if it comes with Han Bespin.
So the two pieces - HT and SSC - would be different and "technically" you couldn't display the HT ESB version in a Jabba display setting (but yes, most don't know the differences and use the SSC ROTJ style for an ESB display.)
It seems not many people are aware that the ESB and ROTJ blocks do have key differences. The most obvious difference is that the ESB block's side bevel (angle inward) from back to front, whereas the ROTJ style is square.
Even Kenner knew about the difference in the vintage days - the ESB one that came with Slave I has the beveled edges, while the POTF carded ROTJ style one is square: