I have been working on some some new customs but I've come to a problem, so I ask you, The Radicons, what should I use for the Drill of Drillhorn? I'm working on making Classics 2.0 versions of the Breastforce inspired by Wheeljaxx's, But I don't know that to used to convert Astrotrain to Drillhorn. If any Radicons could sugest a way of getting of making a drill and treads that would really helpful.
A drill would be a tough one(maybe one of those KO robots in china) Treads might be a little easier. Rampage and Demolisher both have decent ones. TRU has a construction set with a "Scavenger" that might work.
There are Neo-Shifter sets with drills. That's where I got the drill for my Screw Head custom. You could also refer to the Cybertron Menasor and Energon Prime OP3 limb. As for treads, Classics Tank Megatron might be a good source.
Treads are easy, like Guntank kits, or any other tank you care to mention. As for drils, i'd recommend MRR Drill Robo's.