just a quick one, should i be using any kind of rubber washers or anything between my engine cradle and chassis?

Some threads that discuss engine mounting in some way or another:
http://locostbuilders.co.uk/viewthread.php?tid=81785
http://locostbuilders.co.uk/viewthread.php?tid=66074
http://locostbuilders.co.uk/viewthread.php?tid=60852
http://locostbuilders.co.uk/viewthread.php?tid=43670
http://locostbuilders.co.uk/viewthread.php?tid=28013
^__^

no

tom