Thanks Craig, I used parcel tape on the inderside of the chasis and its come up dead smooth.
I did my dads with the resin too but left out the ground up dust out of it and its dried the same only clear so there isnt any disadvantage of mixing with the dust over not using it. It seems to work both the same if anyone was wondering of doing somthing of the same nature
Next thing i want to do is fill in the irrelevnt countersinks..

- Roll on Batley next week, Hoping and praying for dry weather!