I used satin black aerosol,matt black is harder to keep clean.
Worst bit is cleaning & prepping.Petrol is cheapest (and most dangerous) for removing any split gaitor grease.Wheel cleaning acid for brake dust is expensive,good quality patio cleaner in 5 litre drum is cheaper than a little pot of wonder wheels & does the same thing.I use medium wet & dry paper,washing up scourer,washing up liquid & my wifes toothbrush to clean them up.If you've ever slapped shiny tyre jam on your tyres you need to get rid of all traces..or you'll get loads of fish eyes in the paint.Put the aerosols in a bucket of hot water as it gets the paint flowing nicely.Warm up the wheels with a hot air gun/hairdryer before & during the painting.Fiddly wheels to paint,lots of thin coats..be patient to prevent runs.Do the backs first...
Not sure how much this is lowered,lot more than 30mm tho.Get chopping 
Check my blog of Rat for a few lowering pics,I'll do some more of the red car soon..
Tyre wise you can use secondhand 185 or 175s,on the 13" wheels.I use on Rat I think they are 185/60/13,paid a tenner each for them.
Pictures please!!
