Sorry just saw this thread.
No I don't have any pics at the moment. I have to pull the platforms off of two of my boats so I will take pics then. Both are S/T and both are 89 but I don't believe there would be any difference for an 87. I really like my S/T and thought of converting my SS platform to the S/T but never did. Masi242 converted his so maybe his pics will help.

Here are the ones I took of my 206ls. There was a bit of leakage around the upper starboard side so I had to reach in there and smear about 4 tubes of 5200 all over to make sure all the seams were covered.

The transom was partially cleaned before I took the pics. Boat is a 1990 and I was able to reuse the seals, they were still pliable and had no cracking or dry rot.

Hope they help.

Very helpful, thank you,
any pics of what the platform looks like inside?
If you take the stock exhaust location straight out the back of the platform where would the tips end up on the outside of platform? Hope that makes sence.

Your platform looks great on the inside wood is still in good condition.

No inside pics, it is pretty open in the there and very likely shaped like the outside. Fiberglass isn't that thick.

Have no idea where the tips would exit through the platform, probably going to be different on a 242, the freeboard is higher.

The boat only had 180 hours when I bought it. Its a 1990, it was kept in a walk out basement, under a cover and only used it a few times per year. It is basically a new boat.