Lost Speed Sensor inside 5R110 Trans

[Blue Oval Buddy]

The intermediate shaft and turbine shaft speed was stuck in there so we put a couple screws there after breaking off the top (pblaster was used first) the screws broke (although we were able to get them out) we then drilled and chipped piece after piece out however the last little bit of it fell into the trans

what can I do to get it out? It can't be seen through the hole, will dropping the pan yield this piece or will I have to disassemble the trans?

after your done laughing please help, thanks