Just out of interest, why is it not possible to home tan because your in Scotland? I have home tanned sheep skins up here, just wondering if it's something to do with calf skins specifically?
I watched a programme once that had a segment about a company down in devon (I think) who were one the last companies to make leather using oak tannins or something similar, can't remember the name of the company now but a google of 'oak tanning uk' might yield something