pff, ill give it a go, though im not great at prices
1. sticky 10-20kish
2. sticky 15kish
3. low req but dont know who would use it, maybe 5k form a collector
4. single modded casters are normally just merchant, maybe 1-2k
5. same as above
6. 5-10kish, probably collectors want them
7. same as 4 and 5
8-12 sticky about weapon mods
PC: Weapons & Items. Show me the light :)
DvM