I tried google. All i find are crappy pics. I need a site/sites that show detailed pics of the gun, front/side/back/top etc.

it can be difficult, for sure, but good places to try are things like gun auction sites, sometimes ebay is good too, or you could mention the gun your looking for, and people would be able to provide more specified help. A few people here even have gun collections themselves, so if you ask nicely enough, they may just take pics for you.

try google image search, plenty of detailed reference pics there:D

http://www.classicfirearms.co.uk/deactivated.html <--when you see the picture of the gun you like, you need to copy the url of the picture into your address bar for it to appear large.