Try here: http://www.ubeaut.com.au/ubhome.htm
I am currently using the white shellac, hard shellac, water based dyes and timbermate filler. You can buy the little book - Polishers' Handbook - but it's not essential.
I am applying shellac with a brush and it's going quite well. Also the timbermate filler takes stain well which has really helped me in one instance.
Also on a Saga kit I used White Knight spray cans, coloured and clear and they worked well. Avaiable any hardware & paint store.
Regards
RobSm