Photoshop Colour change help please

[7om]

Have a thread in astra but thought id ask here to, my black astra im wanting to see what it looks like with the following done in st orange.
Rear
Lower diffuser
Chrome strip

Side
Door and rear quarter trim

Front
Grill
Fog surrounds
Lower splitter







Best pics i got cheers in advance
Tom

[7om]

bumpo anyone??