Sorry to write so l8te , Do you still need a Floppy? (internal maybe?) I cam even check for a KB (but controller is on motherboard I don't think it will help much).
BTW , I think I have a service CD for thise old Toshiba Laptops , I downloaded the entire cd. (service cd of how to repair or what items are what). I will serch for the name and get back to you.
L.E. you remove green stuff with italian contact cleaner DUECI Electronic G-20 (dry) Puliscicontatti Secco & R-11 Simple Puliscicontatti
I also need to buy a bax of thise claners , I used up my 4x cans.
BTW you'r missing some SMD's on last set of pictures : 288 (almost fallen) D51 , even missing contact plates , PJ2 ,G20(that's a 3 point resistor or something) , R2x(above 288) & left to the traces 2 more black empty spaces with no smd and contact plates... (that's just from one image I checked).