As was said - you may have a stock bridle, just in 2 colors. To be safe, I'd get one from here, as well as leaders.
Spars. You should have gotten 5 pieces - 4 with no ferrule and equal in length, 1 ferruled at both ends. You may have the SLE tubes for the leading edge, they are slightly bigger in diameter, I believe 7/16". the others should be 1/4". It is possible the whole 5 pieces are 1/4". then all the unferruled pieces can be interchanged. the ferruled piece goes in the center of the leading edge. All 6 spar ending points on the sail should have caps, attached with bungee cord.
Personally, I don't use the SLE tubes. They don't flex enough to create the 'belly" in the center of the sail. If you don't have a full set of 1/4" spars, I encourage you to look online or visit your local kite store and get some. Makes your kite much more controllable. As a beginner, I'd look for a set of 3 wrap rods. Light enough for most use and tough too. 2 wrap or race frames are better taken advantage of by more experienced fliers.
Enjoy!