Hello again waikphys,
As far as lubrication is concerned I think you've hit the nail on the head. Those chains require some grease, but not too much as some people do go overboard and that's just not necessary. Make sure all the rotating points are well oiled and I think you'll find it will run a tad quieter to. A 3 legged puller is always an asset to have on hand and they aren't that expensive either at the Chinese tool shops
As far as buying model 45's is concerned there some people out there that are trying to extort huge amounts of money for a flogged out piece of snot, but every now and again you'll find a sensible priced unit, depending upon condition. I wouldn't pay anymore than $250 for a 17 inch machine that requires light attention or $80 for one that requires a substantial rebuild but is sound in it's basic structure eg. no cracked rails and a non smokey motor. Believe me they are out there and mainly turn up on Gumtree but you will need to be very quick and learn the art of haggling to get the price down out of the clouds and away from the dreamers that are just thinking of making an easy fast buck on something that needs a bit of cash spent on it.
I've missed out many a time on a good machine for $100 just because I didn't see the ad until 3 hours after it was placed, by then it's already gone to a new home, so I guess you've got to be a bit addicted to Gumtree so a while until you find one.
Cheers,
BB