1 - See my reply in your suspension thread - you may prefer Willwoods.
2 - 140 / 164 seats are three-bolt affairs - one offset eyelet bracket on the front (LH and RH) and two brackets on the rear which bolt to the rear facing edge of an east-west cross brace within the cabin. They do not bolt to the floor, like 240 seats.
Pictures below are of a 164 seat mount frame with a user operable height adjuster - the height adjuster bracket has two bolts to a reinforced plate on the floor.
The non-user height adjustable version simply has an eyelet where the pivot pin for the adjustment handle is situated. This attaches to the floor via a single bolt adjuster with an eyelet, and then a bolt through it where the pivot pin is below. (See 3rd picture or link for the eyelet adjuster bolt)
http://new.volvocars.com/ownersdocs/1973/1973%20142%20144%20145/images/pg15b.jpg