From the update:
Hi all! :-)
We've been reading the comments and we'll be addressing them later on, so don't think we are neglecting or anything like that :-) What we have been doing in the meanwhile, was recreating to our best (via cardboard!) and then doing the math multiple times on weight and volume differences with resin, so we can fix a price on the 54mm scale Dragons (and riders). To get an idea on what size you can expect please check back on update #12.
As many of you already know, when miscasts -even minor- on such large pieces happen, the quantity of resin thrown away makes the procedure very expensive. Unlike metal, resin cannot be melted down and used a 2nd time! :-( So, this is what we have come up with, we have not fixed an MSRP yet because we would like to do so when we start casting the actual product. You can be sure it will be much more expensive than this though! ;-)