1:10th national tracks are about 35m long by 25m wide...as a rough average. Minimum track width is 2.5m I think, although someone maybe able to clarify that.
1:16th national tracks are about 24m x 12m wide but width depends on the space available. Minimum track width is 2m, although wider is better if you can fit it in.
I'm not from that area....but good luck!!!
