Generally we assemble machines to each specific customer's requirements but if you find exactly what you want here then it's ready to go.

1/.  P1200E 6.5hp 4 stroke Air cooled Petrol engine with Electric start and 12V x 120A Bosch belt driven alternator. Currently fitted with a large quiet muffler but marine exhaust elbow is available. No enclosure or insulation but air inlet can be ducted if you want to build it in to say a motor home or similar. Has rubber mounts and fuel tank. No pull starter as that is replaced by the air ducting inlet. Thyn controller included.
Aprox 20 hours running. $1850 + GST

2/. P3000E 10hp Tecumseh Air cooled 4 stroke Petrol engine with Electric start and 12V x 120A Bosch belt driven alternator. 
Also has mounting provision for an automotive style belt driven air conditioner / refrigeration compressor or second alternator.
Currently fitted with basic marine exhaust elbow or could be fitted with any muffler as required. No enclosure or insulation but air inlet can be ducted if you want to build it in to say a motor home or similar. Has rubber mounts. Pull starter is retained. Thyn controller included.
Aprox 5 hours running. $2350 + GST

2/. RAP3000 8.8hp Jiang Dong water cooled horizontal Diesel engine with Electric start and 24V x 100A Delco belt driven alternator. 
Currently configured for 48V operation (at 50Amps) with 48V Phat Controller including full Auto Start capability etc.
Can also be configured for use at 24V 100A. This engine runs at max 2200rpm or more normally 2000rpm and incorporates an integral fan forced radiator.
Aprox 5 hours running. $4250 + GST

Controllers

1/. Xantrex 24V Smart Alternator Regulator by Balmar. See http://www.xantrex.com/web/id/107/p/1/pt/7/product.asp
Sealed unit smart alternator regulator. Ideal for marine propulsion engine alternator output optimization. $450 + GST