Valuation for insurance all classics(help)

[Silverwolf]

Need some advice please for a friend the following rifles are all classics he needs to know what there worth for insurance, all I would describe as good condition bluing better than I have seen on some modern rifles some of these 100 years or older, thank you in advance for your help. Peter.

BSA S/N S50520
BSA S/N CA78010
BSA S/N S4501
BSA S/N L59243
BSA S/N ST4683
BSA S/N B37240
BSA AIRSPORTER MK1 S/N G32565
WEBLEY SERVICE MK2 S/N 11920
WEBLEY MK3 S/N A9875
WEBLEY MK3 S/N 35042
Also I think another BSA D model under lever with load on the tap where you load it looks very old.