Funnily enough I happened to have a spare L10 in front of me, and a Swiss Army knife, so I've just had a go. Pretty straight forward actually - 3 screws and a ribbon cable..
1) Open screen to vertical, and remove the 2 screws on the back of the hinges.
2) Push screen over to horizontal/180 degrees/flat on its back, and prise out the panel between the On button and the 'Satellite Pro' logo. Lift it out off the hinges too, and remove.
3) Turn the whole thing over, and remove the recessed screw nearest the centre of the base. It's between the two screws which hold the slatted Memory lid down.
4) Turn it sunny side up again, and the keyboard will lift out. You might have to free the two outer lugs. There's a ribbon cable which is removed by lifting up the black plastic bar; it hinges along the edge of the white bar, and lifts up and away from the ribbon.
In the words of all Haynes manuals "reassembly is the reverse of dismantling"...
...so - ribbon in, hinge the black plastic down to clamp it; slide the keyboard back into the case; pop the front panel back on (sides in first, then squeeze down the middle); 2 screws back in the hinges, 1 recessed screw back through the Memory cover, and the job's a good 'un.
Pour yourself a celebratory GIN and TonIc...