Hi Makc
Based on my 50 years of experience with 2-wheel tractors - the last 12 of which I have owned a BCS 740, the short answer to your 2 questions would have to be: „Yes“ to the first one, and „no“ to the second one. This is probably not what you were hoping to hear, but like joecoin, I am skeptical as well, and I think you will be disappointed of the performance of your tractor, and wasting your money on top.
Most modern 2-wheel tractors are very powerful compared to their weight. This makes them easier to handle and more maneuverable, and when using power-hungry PTO-implements, more power is available to the implement, as less engine power is needed to propel the tractor. When using a dozer/scraper though, it’s all about traction, and the main factor affecting traction, is the weight on the wheels.
Using a PTO-implement, is by far the most efficient way to get the most work out of any tractor, as around 95 % of the engine power is available at the PTO-shaft. Using a tractor for pulling or pushing has the lowest efficiency, as only around 50 % of the engine power is available as drawbar power, depending mainly on the terrain in question.
In the Nebraska Tractor Test no. 731, a David Bradley Super 300 weighing 486 pounds, delivered a maximum pull of 241 pounds under perfect test conditions on a dry concrete surface. Your BCS 853 only weighs half of the David Bradley, and would therefore only deliver around 120 pounds of pull under perfect conditions, and even less in steep forested terrain. Sadly that sort of pull/push is not going to impress your gravel driveways in any way, and won’t help you much in building new trails.
Tracks will increase your pull compared to rubber wheels - especially in rough forested terrain, but spending around $2,500 on steel tracks and the dozer/scraper, doesn’t make sense to me. Your tractor will still be way to light, and you will run out of traction long before you run out of engine power.
This is simply not a job for a 2-wheel tractor - sorry
Best regards
Jens