If the gr sport bumper is plastic material then it is legal.... alloys may be illegal, depending upon how strict the rules are in your state....rest of it is legal......
What a waste of wealth 35 plus 15 is 50 lacs thrown away. For no comforts and to stay. Better buy a 4x4 and balance money in FD would fetch you 30k per month with which you could stay for 10 to 12 days ever month in any decent hotel.
Some people even go for a caravan set up on this hilux which would affect your mileage and why should you stay in forest ???? When we have good stay facility all over the country with all the comforts. Why cramped living in a car???
Bro many of those modification are Toyota approved. They too made one off road concept. They admire and understand the importance of off-road capabilities. Check the video of Toyota off-road concept and then talk