Also check with some of the parts stores. Many have the kits and will loan you the tools with you buying the inserts you need. You will want to do ALL the plugs at once to avoid needing the kit again. Also if you follow the directions in the kit you can easily DIY. Basically you will use a shop vac to blow air UP through the engine, block the intake so that the only place the air can go is through the plug hole itself. Then you run the tap in and the shavings "should" blow up around the tap, not back into the engine. Now you use a SMALL nozzle on the vac to make SURE all the pieces came out. Then you finish the install. Then move to the next hole. Repeat.... Once you have them all done crank the engine over some with the plugs out to double check that you blew out all the crap. Now install the plugs with some anti seize and enjoy.
Now if you have access to a high flow air supply use it to blow through the engine. It will stop more crap than a shop vac.