I found the best way was to brew the standard 20l batch in propper (ish) equipment. Then keg it in corny kegs. Not the cheapest solution, but does make it easy to drink at bbqs etc without having to bottle it. And if anyone wants some they can just fill a bottle from the keg.
P.s. if anyone wants a ~23l batch 3 tunn brewing settup (hlt, insulated mash with false bottom, kettle with dual 2.5kw coils, copper coil imersion cooler) Ive got a full set. Built myself so its cheap but functional. Moved onto a grainfatheralike, which has its pros and cons, i prefer the 3 tunns but dont have the space.