I have a brand new oil feed pipe with in line bailey filter that i got for a Pulsar but was never fitted. It is in my shop in Norwich.
Failing that you should be able to find a local hydraulics company to make you one up as long as they have the correct fittings. If i remember rightly the T28 has an unusual banjo/thread that most hydraulics companies do not do.
Also try gofasterspares who are traders on here for a secondhand one.
Eddy
Authorised trader. Bespoke & direct fit exhaust/induction solutions, silicone hose specialist, Millers oils, Whiteline, EBC + much more. Find me at http://www.fast-eddys.biz
330hp Pulsar Gti-r, 153hp Metro and 185hp Smart Car!