Hi XenneX1969 and welcome!
You have a great shortlist there and all I can suggest is that you might consider adding the Diadema Junior Extra/Regal to it as well.
All on the list are terrific machine and we can supply them all as well.
Ultimately, your decision will most likely come down to nuances such as ease of fill, steam wand anatomy and performance, chassis material, drip tray size, bang for buck and other such items.
Perhaps it may be best to have chat about those on your list?
You are most welcome to make contact if we can assist...
PS- do up the Silvia and sell it- even if it requires a new boiler. You should have no trouble getting $500 which will assist with your purchase $$$