100 Pounds for the installation is a great deal. I have one of these units in my car and installed it myself. Much better if somebody else does it for you, especially if that's the person who designed the electronics to begin with. If you do it in a group, you can also buy cables and connectors and figure out where best to put things. I did not have time to test it yet, as I just began to run in the engine and did not want to be bothered with yet another system to deal with. But just having something in your car with 'RaceTCS' on it is worth the trouble And Jacek (Piwo) is a great guy to deal with. Very responsive in case you have any questions.
There's a pot meter and a LED that need to go somewhere you can reach/see them. Optionally you can mount a clutch switch. I put everything on the left side (the right side for you) of the steering wheel next to the ABS switch, the OBDTuner map switch and the Rotrex oil temperature indicator. Lots of room there for gadgets