If you already have a stainless feed line its quite easy to add a filter. Not cheap, but easy. I would recomend AGPs filter, since we know it works (saved my last turbo, only time I've broken in a motor and not lost the turbo). Its about 60 bucks IIRC, 4 an fittings on it. You'll also need a female-female AN swivel to make it work, they may have them, or you can get it from summit or similar. Any filter that is rated for oil flow, and filters down to 10-20 microns will work, but its hard to find filters that offer this info. There is a popular filter on DSMlink and perhaps the NABr forums, starts with a G, but I can't for the life of me remember the name of it... If it comes to me I'll post it here.
At any rate, highly recomended during motor break in...