If you need a resizer, download the free Obvious Idea Light Image Resizer - quick and easy way to compress images from digital cameras or (particularly) cell phone cameras. I use it all the time to reduce my iPhone pics, works great, and best of all - free.
Engine sounds legit, especially if the gunk over the VIN above the oil filter housing has been on there since time began. Tranny sounds O.K., VIN's are a heck of a lot harder to duplicate on the trans surfaces due to most are stamped with a VIN, not many exist without one, so it is a good bet that it probably is original. Rear does sound like a replacement, maybe even as a dealer warranted item (hence the casting number shift). Speaking of shifters, it was a popular thing to replace the original Hurst shifters with a vertical gate, or a Pro Shifter like I did, which required expanding the shifter hole to accommodate the shifter clearances. Not surprised -