Camping Uk

I’m planning my yearly trip down under to see my 2 young kids again in April for 2 weeks next year, can anyone tell me a cheap holiday park and car hire firm, for the past 3 years I’ve stayed in the top 10 holiday parks all over the south and hired my cars from Ezy Rentals there not bad but i want to try some new things…. so if you can help please let me know…

Thanks

Tom