wow... this is a tough one. I find lots of disc-wheel to knock-off conversion kits for disc-wheeled cars, but to go from an original knock-off to disc wheel is almost impossible to find. I thought of searching the net for just the hub assembly to convert a disc wheel to knock-off use, but to no avail.
I checked Moss... they want 1400'ish for a set of 4.
Proper MG wants about $1200.
I found more options by searching for
"Center lock" minilite wheels but it looks like about $1200 is the low point, and I still couldn't find "center lock"/knock-off/knock-on hub kits for use on MGs with OEM wire wheels.
I hope this helped, and keep us posted on your findings... /ubbthreads/images/graemlins/smile.gif