Thanks for your reply . My thoughts are similar - because I really only want a specific instrument and I have already created it in Hauptwerk but I also did it for Grand Orgue - using the Organ Builder by Vincent Forman. I also have many HW pre-version 3 instruments which simply load into Grand Orgue - no fuss, no muss.
I already knew the old HW format so I just familiarized myself with all of the new syntax and format. So far I have compiled several instruments mainly because I did not know what was going to happen with Hauptwerk. It took me over two months to get in contact with them and to get a response. I have upgraded to HWV but my days of purchasing any sample sets is pretty much over. I did get one large set recently that is very, very good - the Peterbourough Cathedral Organ - 4 manuals and waaay too many Open Diapasons. But the set is solid and has an interesting mix of stops.
I have just finished my console - it has been in the works for over 20 years - long before Hauptwerk. The build is huge - I thought of Linux...but I have built other system with the OS, it reminds me of Early Windows NT - very fussy. Everything had to have drivers and network protocols - I used to work for a large Point of Sale company in New York City at the end of DOS into Windows. I am sure that it wouldn't be hard to get a stable system and I feel bloated with Win10 Pro - HW and Grand Orgue are the only applications installed.
I love Lars' Pieta School of Music too. Very versatile and similar to the organs in this neck of the woods - Heavy Scandinavian influence with North German mixed. So we got a lot of Orgel Bewegügen mid '70-80's organs - all 21-27 ranks. There are a few gems though here and there and before my hospitalization two years ago I played a beautiful 23 Rank Casavant from 1974 - so Gerhard Brunzema voiced.
I am going to attempt a full Grand Orgue Sample set though. I have several places in mind - I will see if anyone would be receptive to record their instruments. There is a very good chance of getting a theater organ - but I am completely out of my element there - I have to cross my fingers but it is 18 ranks which is kind of big.