Just buy the extract kit, and all you'll have to do is steep grains as always. That said, mini-mashing is a fun upgrade that isn't particularly difficult and doesn't require any expensive additional equipment (maybe $15 worth for a grain bag and a small 2-gallon cooler), and can help you make better beer. Do a search for mini-mash or partial mash, and you'll find plenty of threads that explain what the difference is.
The Fiesty(sic) Goat Brewery est. 2007 & Clusterfuggle Experimental Ales est. 2009
Planned: sLambic II, Flanders Red II, Orange Blossom Mead, Fat Man Porter
Primary:sLambic I, Janet's Brown
Secondary: Toasted Caramel Port, Flanders Red
Kegged: Hefeweizen, Centurion Falcon IPA< Dark Saison
2013 dump volume: ~2 gallons