I recently picked up some Esge/SKS Fenders (LBS couldn't get them), Arkel panniers (again, LBS couldn't get them), Old Man Mountain rack (via Arkel, LBS couldn't get them), and some Shimano A520 clipless pedals (through the LBS). How easy are the fenders, rack and pedals to install well on your own for someone who has never done a bit of maintenance on the bike before? Is it better to try and take the items to the LBS and pay them to install?