Do Goldacres fit front mounted booms on self propelled sprayers?

No, a front mount boom has only one advantage over rear mount, in that it is easier for the operator to see the boom.

GPS guidance: Now most sprayers are fitted with some form of GPS guidance, eliminating the need to be constantly monitoring the boom position. The negative effects of a front mount boom are many. The machine is traveling continuously in a spray cloud depositing chemical on the underside of the machine, filter bowls, taps, ladder, hoses etc and putting additional load on the chemical filter for the air-conditioner. Spray material drifting back can also contribute to excessive corrosion of machine electrics. This can be an issue on a machine with a rear mount boom, but is amplified and much more serious with front mounting. A front mount boom also creates visibility issues when in the transport position.