"My next question is for anyone who has done any of this area including Shepherds Pass, Colby Pass, Elizabeth Pass, Kern Canyon ect., shoot me some ideas for camp locations, trail or route finding difficulties, water,"
Shepherd Pass is strenuous and usually hot on the Shepherd Creek side. The first water is about 5 hard miles into the hike so take at least 1.5 quarts. Many camp at Anvil Camp(~10,300'), but if you are fit and feeling strong, I'd recommend going 1000' higher to a very nice set of bivy sites about 400' above the Pothole. They are in a stand of silver pines, on the left side of the trail, just before you cross Shepherd Creek for the last time. There are excellent campsites by the 1st lake north of Kern Canyon where the JMT connector trail meets the Kern Canyon Trail. From there you have 2 options to get to Colby Pass: 1) drop into Kern Canyon and pick up the Colby Pass Trail at Junction Meadow(lots of campsites there, but it is not very pleasant). It is only 6 miles south of the above mentioned lake, so I'd recommend taking the Colby Pass trail up into the Kern Kaweah River valley and camping there. It is gorgeous with lots of campsites along the river; 2) go up Milestone Basin and cross Milestone Pass. You can camp just about anywhere in Milestone Basin, and there are also many places to camp in Milestone Bowl on the south side of the pass. Be aware, however, that this is offtrail and quite strenuous, but the rewards are commensurate. It is my favorite route to get to the Colby Pass area. Actually, there is a third way. Coming off Shepherd Pass, take the JMT south to Wallace Creek and take the HST down to Junction Meadow, then proceed as described above. This is a very scenic route, but is heavily travelled.