Sorry about the delay, family illness.
m5040 - I see the 3 pt is on the non backhoe model?. I did find this
Three Point Lift
I did think an adaptation of the removable backhoe model would be easier as it had a beefier rear end?? to carry the maker's hoe. I think the 3pt idea more for the T12 class than the T8? I will try & speak with P-T regarding drawbar pull when I have a bit more time.
I came up with another possibility of adding a small hoe on the front 'bobcat skid steer style' - however I note that the rear hoe model in each class has greater lift height on the front arms, likely because of the rear hoe's weight.
It crossed my mind that if the maker's rear hoe was actually removed (as it is designed to be) you would then need a counterweight of some kind to allow the front end to still work as it would have done with the BH present.
Crawler shovels were based on having 100 Lb of D.B. pull per inch bucket width - TBL's not so because any tough digging meant it could be ripped by the hoe first, thus it is better if the hoe is always present & available for use?
As to the tracks vs. tires thing - I did think of having a spare set of solid flat proof tires on rims for use on jobs where needed. I saw some on a telehandler at our recycling facility. The guy said they were great but he had never driven off site or in 4th gear
I am interested in what slopes the T8 & T12 models can climb - ideally the removable backhoe versions. Thanks for the interest