As to the 3 point issue, it's less than ideal to be sure. I live with mine and intend to do so for a lot of years, unless I get a smoking good deal on a trade down the road sometime.
If I'd known about the 3 point when I was shopping, I would have been up a tree with indecision. It's one of very few issues with the L series tractors, but it's like a wart on a pretty woman's nose. You can't help but notice it, and it's always there.
You need to try one with a box or rear blade on it and decide for yourself.
As to rear blade width, I have a 6 foot 1572 blade that I bought used, and added hydraulic angle to it. It gets used mostly for snow removal, and smoothing loose materials.
At full angle with the hydraulics, the angle is between 30 and 40 degrees, I'm not **** enough to measure it. It does just cover the wheel track with R1 tires. Less than ideal for snow removal since you can't shove snow back without driving through it. A 7 foot blade would have been better for me, it's ok for moving ground though. As LD1 mentioned, an angled blade will shove the tractor sideways with a full load of heavy snow on the blade unless you're down to bare ground, and it tries even then. A longer blade means more leverage on the tractor.
Other than weight to help push the cutting edge down, an 1872 is likely going to be all the blade you'll need for a 35 HP tractor. Mine is on the light side as the 15 series, and the 3400 would have to work pretty hard to bend it. I've stalled the tractor a couple of times and had no damage to the blade. If you hit something at speed it will bend, yes.
In my opinion, which is just that, the 25 series is overkill for the 3200 or 3800.
Teg's point about the lack of a suspension seat on the L3700 SU is a valid one. If you're on smooth ground it's ok, but any kind of field work on rough ground and you may wish you had one.
Either of these tractors may be difficult to add hydraulic rear remotes, if you want power angle on your rear blade (read as "You will want power angle") it's best to price the cost of adding at least a single remote when you buy. It usually costs more later. At the time I added mine, a "kit" wasn't available for the L series tractors with valve, pre-made lines, quick connects etc. If you're handy around machinery, you can piece it together as I did.
Sean
