Absolutely worth restoring unless you mean can you restore it and sell it for more money than you spent. That truck is in far, far better shape than mine was. maybe even better than mine is now.
FHTs are smaller inside and, of course, the top doesn't come off. This makes them much less desirable than RHTs. It also made them not too desirable at the time they were sold so they are very rare and some parts are pretty hard to come by. It looks like you have most, if not all of those parts and that's huge.
column shift is easy and cheap to retrofit because nobody wants to do it. Everybody wants to go the other way. Lots more parts than people looking for them.
Twin stick to dash shift is the same thing. Patching the floor will be easier than finding an uncut floor panel.
Wing window rubber and rear window rubber is impossible to find. The other weatherstrip is expensive, but available.
Dash will need a lot of patching. The bezel is easy to find unless you feel the need to go with the embossed one. The turn signal lens is unavailable in clear, which is correct. Toyota has brand new amber ones in stock pretty cheap. Mirror heads are available as are the correct rims. The newer hubcaps are available new, the T style not so much.
$4-5K, maybe? Maybe a bit more since it really does look like there's a lot of nice parts and the tub looks good from the pics.
Depends on if the body is original steel and the frame is good, of course.
Very nice truck. Do you have the VIN for the list?
