Years ago, in anticipation of one day finding / importing a SportShift bug, I bought this Chargespeed bug to blob adaptor kit via ABW
http://www.chargespeed.com/english/gdb_ab_cd-e1.htm
I only pulled it out of the shed on Sunday, so with the rear end already done with no issue as far as I can tell, the rear adaptors are surplus to requirements, perhaps they'd have been of use if cutting in to a bug bumper but I sold mine after fitting the more rounded rear bumper from a blob.
Not sure whether I'll end up buying a blob slam panel or just chop mine to make use of the front adaptors, maybe I'll try the chargespeed way first and then decide after. Because either way the existing slam panel will be facing a session with a grinder.