Funny you mentioned keeping trucks on your site that are sold. There's a douche up here who has trucks in his sold inventory that were never on his lot.
Bet you're into best part of $60k to convert over to pilots and remotes. I got a quote a couple of years ago to install remotes on a machine...
Shepherds is having them made now, 3/4 Crosby master link with the adjustable eye of up to 4 whoopies spliced in and a Crosby hook spliced into each fixed eye.
It's not perfect, but it does meet ontario regs ( no knots)
Usually in the cold after warming the oil up and getting the stick stood, I scope in all the way every 20 min or so and swap all the cold oil from the scope cylinder for the warm oil in th tank. summer work too, swap the cold oil in the boom for the blazing hot oil in the tank and watch the temp...