I have a Pit Bull NewFront stand. It lifts the front end by the steering tube and leaves you free to remove the fork tubes. It holds the bike securely when I am working on it. The DL650 requires its own special pin - 8T (8 Tall). Try finding that kind of information from your Chinese knock-off.
I have some T-handled allen wrenches 4,5,6 mm. They have the ball end which has munged up the cap screws on my fairings. When I find somebody with a bench grinder I am going to grind off the ball-ends.
I looked for a set of allen sockets. Sears had a set but it only went up to 10 mm. I found a single 12 mm socket by SK for 22.00. Then I found a whole set at Harbor Freight for 11.99. It includes 12 mm, 14 mm and 17 mm. Now those are sockets! I am going to carry a 12 mm with me. Not every mechanic would have one of those.
Metric sockets and a torque wrench. I like the kind that click when you reach the torque setting. 24 mm socket for the rear castle-nut. 22 mm open end wrench for the head of the rear axle.
medium quality crimpers - $10-15. I find them much better than the cheapo versions. I also have two high end wire strippers, the kind that cut and remove the insulation in one fluid movement. One is for wire sizes 26-16. The other is for 16 thru 10. If you match the wire size, they never nick the copper. $25 each. Check out Radar Electronics in Seattle.
Soldering station. Liquid flux.
I bought a mechanics stool from Sears before my last weekend of farkling. Cheap Chinese construction.. square holes in a flange were too big for the carriage bolts. This requires some post-processing. It has an adjustable seat and a tray to hold tools and parts. I should have thought of this 30 years ago.
Oh yeah, a rubber mallet is something I haven't heard mentioned.
A blunt ended punch is good for removing the plastic retainers on the fairings.
Needle-nosed pliers, diagonal cutters.
Inexpensive plastic caliper for measuring inner and outer diameters of bolts and sleeves. I used this to determine that I needed a 12 mm allen socket for the front axle.
Shop rags - lots of shop rags. And hand cleaner.
Tool for removing the oil filter. Mine is a Chevron version.
I am trying to put together a minimal set of tools to carry under the seat, so I am watching this thread for hints.
06 DL650 "Big Red" brand spanking new
05 DL650 "Big Red" (totalled)
93 DR350S (sold)
"I dreamt I shot an elephant in my pajamas..."