Thing is, they never really come up cheap 2nd hand, so then your looking at buying new ones.
for 15's thats 500+
You can get a decent set of rm's for 600, or could spend similar money on a tatty set, new lips and diy the centres.
Also the lensos DONT split, so you cant go any wider.
I also think the offsets look a bit crap:
Not digging tuck tbh.