I use the directions from A to B on google maps, I like the thumbnail photos for each stage of the journey & it gives alternative options. 1 hr 17mins for your route
And I think it’s suggested that route but too many road numbers to memorise.
Never much like the motoring organisation road planners, often some 'strange' to my mind routes chosen!
My favourite is Plan.TomTom (https://plan.tomtom.com/en/route/plan?p=52.49302,-0.98621,8.94z&r=(costModel:FASTE........, mostly because I can put in my caravan dimensions, max speed, journey type (fastest, scenic etc.), get journey details including traffic and roadwork info, usually pick from up to 3 route options, AND then transfer the route to my TomTom Sat Nav, which is not a caravan specific one.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.