o my word that is a very big project if you are not so confident ,could you maybe not do a tiered cake with a small building on .but if you are like me you will challenge yourself and go big . i have not really done anything massive could you not dowel and put board after say every 3rd layer .sorry I cant be more help I cant wait to see it .good luck :)
jenny,thirsk north yorkshire,http://www.darrowbycakes.co.uk
