Yeah I would offer him that and see what he says.
I wouldn't try and take an engine out with a grinder they are not that hard to take out,only a handful of bolts and some connectors and out it comes.
I know the fronts seats fit a puma the grill Won't tho.
I reckon you might get/depends on condition
Interior 100
Body kit 100
engine 60
wheels 150
doors 20
bonnets 30
boot 30