Price advice for some interesting LPs, pls

[jandl100]

I'm starting to gear up for my usual Cancer Research UK charity sale at the 2016 Scalford Show.
These 4 LPs from my local CRUK shop seem interesting but some advice as to asking price would be appreciated. :)

http://i262.photobucket.com/albums/ii114/jandl100/DSCF6632_zps5twebwut.jpg (http://s262.photobucket.com/user/jandl100/media/DSCF6632_zps5twebwut.jpg.html)

The 3 Japanese albums (one of the Harmagedon is a double) seem mint with full documentation.
The yellow Adrian Snell LP is decently playable but has noticeable background noise.

Any pricing advice, folks? Ta.

[struth]

Got a jap gary moore from japan a number of years ago...hes big there...think it cost about 20 quid

[Audio Al]

Google or discogs re prices

[Tom-Brown]

discogs all the way - far more accurate prices than looking on e-bay. You can search by title or cat number :) and as usual condition is everything :)