Mountfield HP470 questions?

Hi I have just purchased 2 mountfield HP470 mowers as spares and repair. My intention was to make one good mower out of the two. apparently all that was wrong with them was missing lower handles and wheels.

some images here

http://s118.photobucket.com/albums/o98/stewart29992000/?action=view¤t=b399_1.jpg

I have been trying to find out if anything else is missing both engines fire up first time ok. Do these have automatic throttle ? or does it need another handle with a cable as it only has the red handle ?

any help would be great.

regards

Stew