I have just planted up new roses this year. I also looked at Peter Beales http://www.classicroses.co.uk/. I think you are only looking at David Austin roses, I opted for one called Dixieland Linda by Peter Beales which is supposed to be very scented, other climbers I have are Lady Hillingdon, an older rose called Veilcehbrau, and others. I looked at Wollerton old Hall but was unsure about the colour and I have grown The Generous Gardener at a previous house which has a talcum powder type, gentle scent.
There is an adage for roses and shrubs that goes 1st year sleep, 2nd year creep, 3rd year leaps so you will ahve to be patient.
I have bought from both the firms and found both OK , Look at Peter Beales as well, they have David Austin as well and there plant guides are a bit more succint in describing strength of scent