DS-Bolos

I was just reading the latest bolos novel, and have some questions to
you DS
aficianados out there.

Has anyone designed a bolo, and how was it sized (probably a oversized
modular/sectional vehicle, but how big? These bolos are BIG!)

How would anyone represent the hellbore main gun? The closest example I
could think of is a DFFG (but larger than a DFFG/5) with the range of a
laser (after all, they could hit anything upto close orbit). And how
would
you represent ground to orbit fire in FT using one of these?

BIF
"yorkshire born,yorkshire bred,
strong in arms, thick in head"