so as a guide for prices,

15 for the motors,
30 for the esc's
20 for the radio system
15 for the battery
10 for wheels
10 for the hdpe sheet
5 for miscellaneous
£105, does this sound reasonable or is that a dreamy figure?

also does hdpe need to be thicker?
is it resistant to spinners?
by the looks of things it will be quite a fast bot, i will get the parts ordered tomorrow, including silly imperial allen keys for the hubs