My B7800 (loaded rears, R4s; decent traction esp when hanging an implement off the rear) tamed a LOT of my 40 acres. I highly doubt any other machine (excluding an industrial one) could have done what this B7800 has done. Nearly unbreakable. 1,800 hrs on my B7800. I've put on about 1,100 hrs. Only once was it not able to return back home: popped off the hydraulic return hose.
Heel-toe, um... geez, big deal: two tractors, one side-by-side and one heel-toe and I have zero issues switching between them. OP, seems like you're looking for excuses to not pull the trigger, and, well, OK, I get it, but if you can't adjust to something like heel-toe I have to wonder whether you're able to really take on complicated tasks. (with the side-by-side travel pedals on my Kioti I will often jab the wrong pedal- just happens, even after 700 hrs of operating time)
BTW - Tooth bar on bucket works pretty well to break up soil: I even, gasp!, do a lot of back-dragging (sometimes lifting the front-end up in the air while doing so) with mine (as noted above, the B7800, and from what everyone else seems to indicate is the norm for the B-series, is nearly indestructable).