Not a bad job if you have the proper tools. It has to come apart just like doing the timing chain because you will need to retract the tension-er to get the timing chain loose.
Then once the chain is off you can pull the housing and check the replacement part for any wear on the cam or lifters. If they are worn (need to be measured very precisely) you will want to transfer the cam and lifters from the current part to the replacement, being very careful to make sure they go into the same positions they were in. With the mileage you have you will want to do a timing set while it's apart.
Price wise you would be looking at the replacement cam housing, full timing set (with sliders and tension-er), a top end gasket kit at a minimum.
Wednesday, February 15th, 2017 AT 8:39 AM