You can always make the seller an offer lower than £299 and he will accept It, I did £280 and that went through fine. You should be able to go lower as I did see he sold one for £190.
Tried the Baja out today and started straight away without even having to adjust the choke. Compared to my son's nitro (Condor Pro which Is a total pile of junk) which took ages to fire up. And on that subject I don't know how Nitrotek even sell these, the engine was totally loose with the screws almost falling out and wasn't even aligned with the gears. Compared to nitro, petrol is pure delight to run.