For sale we have today the Republic CR-20, an indispensable troop transport that served right beside the LAAT. More heavily armored then its smaller cousin and more suited for space travel as well the CR-20 was sized closer to an Imperial Gozanti. Capable of depositing a huge load of Republic troopers and heavy equipment they were feared by their Separatist counterparts.
These would make an excellent proxy for your C-70 chargers or a pelta! Or get real fun and do some homebrew!
3d printed out of ABS like Plastic.
35mm long.
Not affiliated with Mr. Lucas or Disney
Thanks for looking!