That is not possible.
The code for maxing out all items is a single line of code. So there is no way to separate the items from each category.
However,
There is a code for all SG spheres.
Originally posted by GameGenie
10003F98 00004620
00004151 000000FF
10003F9A 00004720
00004152 000000FF
10003F9C 00004820
00004153 000000FF
10003F9E 00004920
00004154 000000FF
10003FA0 00004A20
00004155 000000FF
10003FA2 00004B20
00004156 000000FF
10003FA4 00004C20
00004157 000000FF
10003FA6 00004D20
00004158 000000FF
10003FA8 00004E20
00004159 000000FF
10003FAA 00004F20
0000415A 000000FF
10003FAC 00005020
0000415B 000000FF
10003FAE 00005120
0000415C 000000FF
10003FB0 00005220
0000415D 000000FF
10003FB2 00005320
0000415E 000000FF
10003FB4 00005420
0000415F 000000FF
10003FB6 00005520
00004160 000000FF
10003FB8 00005620
00004161 000000FF
10003FBA 00005720
00004162 000000FF
10003FBC 00005820
00004163 000000FF
10003FBE 00005920
00004164 000000FF
10003FC0 00005A20
00004165 000000FF
10003FC2 00005B20
00004166 000000FF
10003FC4 00005C20
00004167 000000FF
10003FC6 00005D20
00004168 000000FF
10003FC8 00005E20
00004169 000000FF
10003FCA 00005F20
0000416A 000000FF
10003FCC 00006020
0000416B 000000FF
10003FCE 00006120
0000416C 000000FF
10003FD0 00006220
0000416D 000000FF
10003FD2 00006320
0000416E 000000FF
That is from the GameGenie forums in which, members (including myself) have worked hard to finding codes.