EI 48 Transformer Laminations Supplier for Retail

[opacheco]

I am searching for a supplier in retail in order to buy a couple of Kilograms of Annealing Mu metal EI 48 laminations (No air Gap at all); who knows a retail supplier able to get a little order like mine?. I would like to get some bobbins too like I show in the images below although I will prefer bobbins like with 4 pins in both side for PCB installation.

I will appreciate any advice in that.

Thanks a lot
opacheco