Transformer selection

We require a small off line switcher to provide five independent and isolated outputs (600V isolation) each 12V @ 0.05A. I used PIDexpert but I have difficulty finding a core/bobbin with sufficient pins. Is such a transformer practical? or can I use two transformers with primaries in parallel.

What is the procedure to obtain samples from PI...can I send the design file from PIDexpert? I require a transformer for an other design also.

Best Regards,

john lumsden