I believe the earlier 75 year utes and troopys had brown interior, but later years had the grey interior which should be just bolt in. I ended up taking my dash apart and painting it myself, rather than going to the trouble of sourcing for a wrecked vehicle and paying parts. 2017 dash won't fit correctly without modification. Although, A late 2013-14 model camry/corolla steering wheel fits straight on the steering wheel spline on the old 70 series if you're looking to modernize your interior.
Exterior panels will fit quite easily as mentioned by Rosco, but if you have the 1hz engine in there, you will need to source one from a 1hd-fte ute/troopy depending on what you have as the chassis is wider in the v8s to accommodate the engine.