Hi Moo
Re the periscope lights, I've done something similar, but to disguise the red LED airsoft warning light in HL M41's
The LED is mounted in an acrylic vision block (Plastruct ARR8).
Had noticed the ridges on the parts - filler & sanding should fix those.
The 76mm on the Scorpion is nothing like the Sherman 76mm, it's low velocity and hardly intrudes into the turret. Amongst others, it fires HESH (US appellation HEP High Explosive Plastic) which tends to do bad things to concrete & brick, and blow scabs off the interior of tanks, at the same time taking out aerials and optics as a secondary effect (blast & shock). For a bit more on the ammo types -
http://www.scorpiontank.co.uk/html/C...unSupport.html -
The Cockerill 90mm -
http://www.cmigroupe.com/en/p/cockerill-lcts-90mp -
The Scorpion is a recce vehicle - not a battle tank and shouldn't be used as one, given the choice, though it should be able to handle Pz I & II and armoured cars. The Scorpions in NZ Service were found to bend it they hit something hard, and the turret is a bit top heavy, so they can flip over quite easily. If you've been in one, you'll find it a very tight fit, and then there's the reason they were taken out of service - toxic fumes build up in the drivers compartment, from sustained gunfire. Other than that, they are a neat zippy little vehicle.
Mal