Don't know about your engine but as long as the area on the Engine Block where the filter attaches is flat you simply need a flat plate sufficiently thick to take the treads for what ever hose fittings you pan to use.

If you get a stock Oil Filter to block Gasket you can use that to mark off where the blot holes will go on the flat plate.
Aluminum seems to be the most popular metal to make the plate out of.

In the attached pic the old Gasket could be use to know where to drill the holes.

In the next pic someone used 2 steel (looks like not machined flat) thin steel plates in order to keep the stock filter. However, the stock filter takes up a lot of space.

The last example is a picture of what someone was trying to sell on eBay. He welded a spin-on oil filter adapter to a stock housing that was cut down. A complicated thing to do but if the spin on Filter was removed I am guess it would give you room to take the IP out and at the same time it you don't have to worry about finding room for a remote Oil Filter.
However, since the filter is upside down an oil filter change is going to be messy.

Anoter issue is that if you have hoses going to the Oil Filter when you start the Engine it is going to take longer for pressureized oil to get to the Oil Filter and then the Engine.

Attached Thumbnails

     

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84 300D, 82 Volvo 244Gl Diesel