Hi there jonnyboy, use the Noco G1100uk, Lauren can do that for £25 for you. Don't mistake Noco stuff for Ctek it is on another level, we did sell about 30k of Ctek a month and we don't stock it anymore,,,say no more.
As for solar plugins Noco do them but we don't stock them yet, our main business with Noco is with battery boxes, we supply a lot of boat builders and shipyards and that is how we got exclusivity for Noco in UK.
On vehicles you don't use a lot you can use AGM as they don't self discharge but be warned you totally flatten them they don't recover like lead acid. best AGM is Oddesy and North Star but they are big bucks, I would only put on serious 4x4 and race vehicles