Thanks for the recommendations and taking the time to reply Shantibaba - your advice is particularly appreciated.
I was already eyeing off Nordle but I think the way sensient spoke of it and the fact that it's smell reminded Howard so fondly of the old days seals it for me.
I've dabbled a bit before with dry sift and enjoyed the results but a lot went into it for the returns I got. This time I want to do my research, take my time and get better set up to give it a proper go. I figured getting a variety that's well suited for the purpose would be a great place to start.
I won't be doing this for a while but given the way things are at the moment I think it's good to start organizing things sooner rather than later.