Garry the filter relocaters I've seen have a aluminum part that resembles the oil filter, but only a quarter/third as long. They have two 1/2" hose barb fittings that point straight down, but could be replaceable with 90° ones. Problem would be clearance screwing in the phony filter with anything protruding from the sides or the 90s hitting each other while screwing them in. This could be overcome by removing the filter housing, screwing the adaptor on then replacing the bracket or use barbed hydraulic swivel fittings(basically with a union built in). The relocation kits are available from many sources, if you have NAPA in BC I would suggest them. At NAPA you can usually talk to someone that knows something, not like ordering online or telephone. NAPA will usually give your money back if it won't work for you. Many performance shops can probably get one for you also. Again I suggest that you purchase from a place where you talk to someone you knows something and maybe see before you buy. Make sure the relocater will take an OEM filter, many will just take a filter that the relocater manufacturer supplies.
Another alternative if you are crafty enough or know someone with a machine shop would to be make an adaptor with threaded ports that replaces the filter housing entirely, remember you will need ports for the turbo oil. Then make a hose barb adaptor for the OEM housing. This is all very doable with just a drill press and some taps. You could come out with a great custom looking setup that could take very little room and head the hoses out in any direction you desire. I've never checked but it is very possibile that Cummins makes a relocater kit, I've seen 5. 9s used in industial situations where accessiblity is very difficult. That would be the first place I'd check. Try Cummins NW in Seattle 800-274-0336