While I know you've put in quite a lot of effort into the existing HL tub, the Asiatam hull does come with a track tensioner which I consider essential for any tank (I get the impression that the HL Panther doesn't have it as stock but again I could be wrong). The corrected hull angle and the torsion bar suspension are simply bonuses. You've put so much work into the upper hull, give it a chassis that would really do it justice!