Walter, this is a low resolution version of a high resolution negative scan. Your hesitation in offering useful critique is certainly warranted. You are correct in that there are issues in sections of the shoulder of the curve, the question is whether or not this will be alright for the family owners of the building.
Maris, I am in complete agreement about the problems with regard to lighting not looking right when you are photographing a dimly lit subject. As for changing development to help reduce contrast, yep, actively working on that right now. I have three sheets with the same exposure as this one, but I've changed the development in a bid to find the correct fine line between what works best and what doesn't.
The shoot will happen over one of three days around the summer solstice right at sunset when the sun lights up the southern side of a 120 year old building. The sunlight is coming through two small hills south west from the main building and was originally called Federation light. The building was finished just in time for celebrations in 1901 for Federation with the first party held on the 1900 summer solstice in the gardens where the light shone briefly on the south facing side.
I have been to the sight a few times over the last few decades, family friends, so this year we are giving it a go. The end result, if it works, will be a print job, possibly a duotone done by a local retired printer with an old Heidelberg single colour press in his garage. The negative will be scanned and I'm sure the detail they will be able to get from highlights and shadows, will certainly be much better than what I would even hope to get either electronically or via a wet print under my own steam.
I'm also thinking of using Bergger panchro 400 with its inbuilt two speeds of emulsion; more tests.
In case you are not aware, this is the Ilford chart I've been using, it certainly seems to work and work well.https://www.ilfordphoto.com/wp/wp-conte ... sation.pdf
One thing I have surmised a little about the Ilford chart, is whether or not the reciprocity factor Ilford give for SFX film, which is the yellow layer of C41 film, would also work for standard C41 three layer film.