Thanks for the comments guys!
Deveran - The resin I use is pretty tought stuff - large blocks are really strong but even small details with withstand a reasonable amount of punishment. I get my supplies from
Alec Tiranti UKGreat Shop in the south of England
I use their T20 Silicon RTV Rubber for my molds
Biresin G26 resin for detailed or fragile bits
and 'Modell' Plaster for bulky items as its cheap relatively strong and it picks up the detail really well
Axiom - Ork gunners - Yeap you're right but I wanted to keep the project as simple and time efficient as possible as I need them shortly for a campaign weekend at Warhammer World - want to make sure that they were done. Probably would have had the time but hey! live n learn!
To answer your other question - the 1500 pt force has 12 buggies, 3 guntrukks, a basilisk and three trukks loaded with choppy boyz!
The full 2250 (for the Endgame campaign weekend) will have 21 buggies, 6 guntrukks, a basilisk and four trukks loaded with boyz. And de'll all be going ded FAST!
Si - Painting was kept to a simple black under coat followed by dry brushed tin bitz then chainmail. after that I used Scab Red to paint them rough and ork like. Then I used Blood Red to brighten the colour. Another quick light drybrush of silver to pick out rivets and then black and white to pick out details - job done!
I'm probably going give them all a really light brown wash to dirty them and a quick sandy drybrush to wheather them slightly.
PS hows the Stompa coming along?
Niroe - OH YES! Red wuns go very fast! They did last night! My buggies and boyz charged into witchhunters with grey knights and broke through to blow up the objective! (Sabotage Mission).
I have discovered that making numerous armour plate 6+ saves on vehicles is a great to wind up your opponents!!

The dice were with me last night!
As for the tutorial - I think it best that I direct you to the place that I started from - mainly because I don't think I could do better!
Great website - loads of stuff to coo over!
Hirst ArtsFeel free to PM if you are trying molding and need any advice.
I would seriously recommend giving it a go - great fun!
BUT............
Do Not Use Molding To Duplicate Any Copyrighted MaterialIt is illegal and not something that this Forum supports!