Thanks for the suggestion but the rods are working well - it is just the fine tweaking!
And today was MUCH better. My angle grinder had given up the ghost and, as it was only bought in June, Halfords have exchanged it - for a new box complete with two grinding/cutting discs. Thanks Halfords
I then had two oil pipes made to get the cooler in a better location - and got £5 off as they hadn't got any change - Thanks Couger Hydraulics
I then got three lengths of 3" x 1" X 3mm box section to reinforce the inner sills - also with £5 off as they had no change either - thanks Pattersons Fabrications (They also bent the steel for my "See Saw")
Then I found a local race shop could get the American dragster fuel cell a bit cheaper - Hauser Race cars
I was able to borrow a pair of coil spring compressors - Thanks Northantsalfa
The man in the Powerflow silencer unit in Wellingborough thinks he can make up a twin silencer system - possibly
Then I ferreted around Autospares in Raunds and think that the Fiat Panda rear door may just serve to seal off the rear of the Sprint above the bulkhead.
.... then I was able to put a bit more onto the car