Here's the parts break down that Harley has, could the spring come as part of the barrel hinge? These part numbers are from 05 but should be the same.
FLT MODELS
1 2665 SCREW (4) FS
2 2995 SCREW, used in lower inner to outer fairing mounting holes (2) FS
3 3732 SCREW (10) FS
4 4768 SCREW (2) FS
5 6716 WASHER (4) FS
6 7576 LOCKNUT (4) FS
7 7601 LOCKNUT (2) FS
8 7624 LOCKNUT (4) FS
9 11489 TRIM (2) FS
10 58359-98 EDGE TRIM (2) FS
11 58459-98 HINGE COVER, storage box (2) FS
12 58530-04 BRACKET, fairing mount FS
13 58727-98 COVER ASSEMBLY, right storage box w/# 58459-98 & 64255-98 FS
58728-98 COVER ASSEMBLY, left storage box w/# 58459-98 & 64255-98 FS
14 58734-98B INNER FAIRING FS
15 58735-98C INNER FAIRING ASSEMBLY, w/# 1, 5, 8, 10, 13, 14, 16 & 18 FS
16 58888-98A BUMPER, fairing door (4) FS
17 64255-98 BARREL HINGE (4) FS
18 64256-98 EDGE TRIM FS
19 67043-96 NUT (8) FS
20 67352-96A CLAMP, 2" gauge (4) FS
21 70457-98 EXTENSION HARNESS, cigarette lighter FS
22 74419-96 SENSOR, air temperature FS
23 75044-96 SOCKET, bulb (4) FS
24 67445-00 BULB, w/ rubber boot (4) FS
25 75165-01A OIL PRESSURE GAUGE, w/# 67455-00 & 75044-96 FS
75166-01A AIR TEMP. GAUGE, w/# 67455-00 & 75044-96 FS
75167-01A VOLTMETER, w/# 67455-00 & 75044-96 FS
75168-01A FUEL GAUGE, w/# 67455-00 & 75044-96 FS
26 77078-98A BRACKET, radio carrier FS
27 91808-89 ELEMENT, cigarette lighter FS
28 91812-89 SOCKET, cigarette lighter FS