Lowering my wagon - NEED HELP

[undertow33]

Hi everybody, not sure if this is the right place but i need help

Im considering sticking some new springs on to lower my car at least 50mm at front and 30 or 25mm at the back.

Does anybody know if this will cause any problems and who would sell springs for this because ive checked out P.I Springs and AVO Springs but they both UK and i want to be sure before i order overseas.

My brother says try some King Springs but they dont make any for a mondeo... are there any identicle cars to the mondeo in terms of the suspension so i could order them?

sorry if this makes no sence... im not that mechanically minded. my brother is the mechanic of the family but he doesnt help me much.

Thanks