I am thinking of buying either a L4310 or L4610 "rental Special" from Carver, and have plans to add a top & Tilt kit, with the dual hydraulic valves. I was quoted a price of $1,500 for the retrofit and upgrade. So, is this something that I would benefit from, as it pertains to a box scraper, post hole auger, brush hog, etc. over the life of the tractor. Are there any other solutions to getting a hydraulic top link to assist in the controling the pitch and height of the rear power attachments.