It probably will as the body is the same.
Yes
Not without modification
not made yet to my knowledge.
No, they're 2 different grilles
Yes
Yes, but the signal lights are the wrong shape.
Anything is possible if you're willing to spend enough money and time, but such a task would be incredibly laborious and not at all cost-effective.
NO a grill from a 87 will not fit a 91. Only a grill from 88 , 89 or a 90 will fit. They don't even look the same.
I would imagine if the fenders,hood are interchangable the 70 bezels and grill could fit. I'm curious why you would want to use 70 bezels instead of the 73? The 70 are very expensive and hard to find ( I've been looking for a pair myself) 1970 headlight bezels won't work if you are still going to use the 72-74 grill. If you replace the whole grill assembly, any year will fit, wiht the proper bracketry. 1970 bezels are being reproduced now, but grills aren't, and they are considerably more expensive than 72-74.
Fit 96 grill in 95 blazer
it's possible that a Lexus grill will fit on a Camry but you may have to modify it.
there is one on you tube look for it its a orange one try 67 68 69 they fit perfect