Most machines can be plumbed regardless of the year.
My neighbor has an ancient excavator, about a 10,000# machine. And it runs perfect and gets the job done.
When buying a used machine check all the bushings on the boom and the blade, they do wear out. Check the hoses. There's a trillion hoses under that housing. Hydro hoses aint cheap to replace.
If the machine was used heavily for breaking concrete - it's endured alotta vibrating and banging around, etc. Would probably be best to pass on it.
"It's You vs. You"
"People Throw Rocks At Things That Shine"
My Equipment Brag List:
-1 CAT hat
-16 pairs of Hanes socks (the Heavy Duty model), many with holes.
-12 pairs of underwear, ranging from Joe Boxers to Jockey, many are in need of replacement. (no more photo requests please)
-hundreds of t-shirts. Some w/ grease stains, some torn & tattered.
-7 pairs of jeans, ranging from Levis to Polo to GAP. 1/2 of them have holes in 'em.
-1 pair of old worn out Nike shoes.