Learning the hard way
Join Date: Oct 2011
Location: Western Kenosha Cty. WI
Re: Advice - Used Simplicity Conquest
Welcome to the forum.
1) 18HP more than enough power for the 50". You could get 50"'s on them brand new.
2) Price it too high. It's definitely an older one say from the early 2000's. I think around 1000 a better price for average used condition. Safe to assume someone listing for 1595 is probably a re-seller so you might not get good history of the machine.
3) Make sure to run it awhile and get it hot and transmission hot too. Go up hills when it's hot. The deck lift handles like to wear out, make sure it operates like it should. Check for leaks around the crankshaft underneath. Check to make sure engine is not all packed with grass etc. under the shrouds as best you can.