So Ive drawn all the plans or the Dutch Church and opted for a conventional rectangular affair with a spire at one end, and to add some interest a pair of later additions in the form of a small side room, roof and porch on the West side and a oblong room with door on the East.
Overall the church building when combined with the graveyard and retaining walls will be a substantial build which will take sevarl weeks to complete so planning the detail is crucial.
I ve started marking out the materials and have settled on a predominantly foamcore and card constuction, with balsa wood and plastikard detailing. The spire will be the most difficult part as I want a typically fat bottomed roof seen on many Northern European churches, so I am probably going to use HD blue foam, carve it to the approximate shape and then add cardboard to the faces.
One problem I did forsee was how to achive good looking recessed doorways, and have decided on cutting a bigger hole than required in the foamcaore and then from the back progressively filling the hole in 2 stages with smaller pices of card to create that stepped look you get on many churches. The cardboard mock up below shows my thoughts in rough format.

The windows dont need such detail and will have a single insert to create a single lip. As for stained glass, I am currently scratching my head as the best way to achieve this, perhaps colour photocopying on to OHP sheets?