Allenby300

Hi all probably asked before my 300 won’t start new battery and all electrics appear to work but she won’t start all the noise burps farts etc but no click so no power to slinkier or starter uk aa said gently clout starter still no good . There is power to starter fuse and that is ok but I have seen that the starter relay can be a problem . Please help if you can not a lot of money and need her for a caravan holiday in 10 days thanks Paul