Since cost is an issue here, I suggest:

Hobbico Voltwatch2 4.8V/6V Rx Battery Monitor - Don't really need it. Would be nice, but just charge the plane and transmitter overnight before flying

Tower Hobbies TOWER Power Starter 12V Deluxe - Learn to start with a chicken stick and borrow a starter at the field if there are others there. Most fliers won't mind and if they do, just chicken stick it. Also your instructor should have one you can borrow. This is one thing you will eventually want though, but you might want one that starts bigger engine in the future, so I would hold off on getting one right now. Also, some engines start better with a chicken stick than others. My LA 40 is a pain to chicken stick, but my ST 40 starts right up with one.

Great Planes Fingertip Prop Balancer - I just put a small piece of brass tubbing thru the prop and get the balance close that way. Heck, I have a few prop strikes on my current prop and the ends are looking rather messy, but it has not damage anything but the very ends of the prop. I am sure it is out of balance though.

Tower Hobbies Hand-Crank Fuel Pump - Good choice, I don't like electric glow fuel pumps for safety reasons

Hobbico #64 Rubber Bands 1/4lb. - get a bag of them at the office supply store at the cost of $3 for 1 pound of them verses the 1/8 pound for $7 at the hobby shop.

Dubro 4-Way Socket Wrench XL - Good, but could be done with a normal socket set, but I would just spend the money on the 4-way

Great Planes Silicone Fuel Tubing Standard 3' - Get extra you will want it. Also cut small pieces to slip over the clevises to ensure they don't open during flight.

Great Planes Filling Station Can Fitting Set - Not needed but handy. You can just get a fuel filter and put it on the end of some fuel hose, then drop it in the fuel can when filling, then remove and put the cap back on. I did it this way for a couple weeks, then got the fitting set.

Hobbico Recoil Fuel Tubing 5' - Not needed, just get some more regular fuel tubing.