Bit more reading. U4 may be a tad expensive for me! I saw the Balkan rally in Bulgaria is £2k entry fee quite pricey! Plus the cost of getting there, back etc...
So maybe Comp Safari? Tad cheaper at £100ish per entry, need not be such an extreme build. Meaning I could build it sooner, faster and better within the regs.
Still looking at the Tornado Motorsport space frames, may have to give them a ring as not replied to me emails! Though I guess they are busy with KoF on atm. If that proves too pricey then I'd go for the Whitbread kit I think