I am also building out a list of extant textiles for the time and location at which I am looking. At this moment I am starting with La Tène A and B, so am collecting the data on the entire La Tène period, as well as Hallstatt D. I actually had to print myself a chart and map to keep new my workstation so that I can remind myself of what fits where (as some people label a find simply with a date and others list it by century).
As I also mentioned earlier, I am specifically looking at Central Europe, with a focus on southern Germany and Western Austria. My initial thoughts were to pull things from those specific locations as well as Switzerland and France, but after doing some reading yesterday I see that some authors lump Germany and Austria in with the material for the Czechoslovakia, Hungary, and Yugoslavia for the La Tène period (which France and Germany are more similar in the prior Hallstatt period), so this is something I now intend to look at further.
I think I have added over a dozen new physical books to my library this year, with 4 more on the way. Add to that dozens (hundreds?) of PDFs and I certainly have enough material to keep me happy for awhile. I also have the ILL librarian sourcing several key documents for me that I simply could not find to purchase at all.
My first sweep for data includes gathering information on wool types (which I have now done), dye studies (I definitely have enough to go on), and textile catalogs so that I can form one big document where I can sort and view things as needed. I already have a list of questions that I want to try to answer before I start a weaving project this spring.
In addition to all of this, I am gathering images and icons of clothed human figures in period so that can start experimenting with garb types.
Oh, and also, have you looked at the positively incredible array of jewelry these people possessed? I am looking at my specific time frame and narrowing town the bling that I hope to try to make soon as well. And beads. So many amazing beads (most of which are the same types of beads from Carthage that I am working on for a friend, so I am delighted to not have to print more images to tape to the studio walls).
Looking forward to start compiling real thoughts soon!