After thinking about it for the last couple of years I am finally building a grapple. I have the time now since I retired a couple of months ago. I've googled and searched through GTT and TBN to try to steal, er I mean learn how others have done it. The grapple frame is the 3" angle iron quick attach frame I built for forks. I'll still be able to use forks with the frame by unbolting the bottom bracket to put the forks back on. Most of the steel is 1/4".
Using the below material. Waiting on the hoses and fittings to be delivered.
hyd. cylinder: Prince Manufacturing W200060-S Wolverine Tie Rod Cylinder, 2" Bore x 6" Stroke, 1 1/8" Diameter, 2500 psi, Chrome Plated $75
diverter valve: Chief Stackable Solenoid & Manual Operated Circuit Selector Valves: 14 @ 3045 PSI GPM, SAE 8 Port Size, 5000 PSI, 220934 $145
hoses: Northern Tools (4) 4' 3/8" in addition to using the current curl hoses
hyd fittings: Discount hydraulics
Grapple handle: Replace stock hydraulic control handle with 1/2" bent tube with bolts (1/4" holes drilled for wires) welded into each end and use a JD knob with a momentary switch. Copied off of Dirtrod.
This is what it looks like so far.