Equalizer Bar for towing - Do these normally have anti sway built in or is it seperate from the system? I am lost on this!!
Already have the hitch mounted on the truck for the trailer also...
The Equalizer brand
of weight distributing (WD) hitch has it built in. Most other brands do not. Are you sure you have the Equalizer brand of hitch?
Fresh drinking hose - is 50ft enough? I think its the longest they make... I don't know how long I need... don't want to be stuck without water because my hose is too short!
Typically 25 feet is plenty for any campsite and many of us carry two 25 footers rather than a single 50, just so we don't always have to handle that long hose. There may be a few campsites somewhere that you need more than 50 ft, but they are rare. Most likely to be in somebody's yard or driveway rather than a commercial campsite.
Sewer hose - 20ft ok? I noticed they only come in 15 ft with 5 ft extensions... Should I expand this?
As with water hoses, distance to a sewer inlet may vary but 10-20 feet is typical. I carry two 10 ft sewer hoses for ready use and have another 20 footer stashed away for the rare instances where I need a bit more.
Electrical cord to run to get power to the trailer - Is this a standard orange indoor out door power cord? Is 100ft enough?
The 'standard orange cord" is a 16 gauge cord and suitable for smaller loads only. Max power is about 13 amps in lengths up to 25 feet and much less for 50-100 feet. What is the shore power system on your RV rated for? Typically they will be 30 amp or 50 amps (the three prong plug is 30A, while the 4 prong is 50A). And how long is the cord on the trailer? 15-20 feet is typical and that is often enough to reach the campsite power pole by itself. You will probably want a 20-25 foot, 30A RV extension cord, though, for the occasional outlet that is further away.
If your trailer has a 30 amp power cord, you may also want to get a 30A-to-15A adapter so it can be plugged into a standard household power outlet when necessary. You only get half the power, but its better than nothing! You can get one at a Walmart or RV store.
Disposable Gloves for dumping sewer.
Wheel Chaulks/blocks to keep from rolling. I plan to do both sides of all 4 wheels... is this over kill? Never know what incline I will have right? Do I need wheel lifts?
4 wheel chocks is plenty. One each front and back, on both sides.
What do you mean by "wheel lifts". The device known a s a wheel lift is for changing tires. I wonder if you mean some other device, perhaps for leveling the trailer? That would be a piece of wood or plastic that is placed under the wheels on one side to raise it up about 1" per slab (multiples can be stacked). If that is what you mean, then yes you want some.
Also, does the trailer have built-in stabilizer jacks in the back? They are used to steady the trailer when parked.