Mika, I also think it will be interesting to see how the historic tulips perform. I only bought two old cultivars and I did notice that the bulbs were a bit smaller than the modern ones. I find your choice of historic Rembrandt tulips particularly fascinating. They look rather fantastic, but I got to admit that I have some respect for these broken colored cultivars of the past because of the virus aspect.
I do have a particular soft spot for lilies and wish you good luck with the L. regale. I don't grow it myself, but heard from someone on the lily forum that it appreciates a bit drier soil than many other lilies. Perhaps worth a try?
I just started growing Martagons last year and I can understand that you like them
. They are very graceful.