Install Dual Alternators On Mercruisers

Two 2.8 L Cummins-Mercruiser diesel engines on my boat at MDL Marina, Bray (Maidenhead, Berkshire) each need each alternator bolted on and wired in. The new alternators are already on board, boxed, and match the factory specs, so no parts hunting is required... (Budget: £20 - £250 GBP, Jobs: CAD/CAM, Circuit Design, Electrical Engineering, Electronics, Installation, Technical Documentation)