Pulled my old tired ea82 out would really love an ej swap. I have read some on the process but just getting opinions on cost difficulty and the best way of going about it.

Its covered really well use google and type in subaru gl ej22 swap. Find a wrecked,rusty, or blown head gasket car to get all the parts off of is the cheapest way. Usually free to $500 for the whole car depending on the condition. If your not good with wiring you will have to send it to someone to get it stripped down.