Cast aluminium welding

Without me picking up a phonebook or scoping yellowpages, anyone got a contact/mate off the top of their head whos competent enough to tig a cast al bend to a cast al comp cover?
Cost no issue, cause it'll cost me ~770 to replace the comp cover if they **** it up
Cost no issue, cause it'll cost me ~770 to replace the comp cover if they **** it up
