For Sunday, I propose we all meet just before 9am at the quarry carpark on North Malvern Road (where we met last time) which is at SO 771 468.
We can leave a couple of cars there to pick up later (it's only £3 all day for each car). Then we can all travel in the other cars to the south end of the Malverns where we'll park for free at Hollybush on the A438.
We'll walk on a level bridleway south to Whiteleaved Oak then up to the trig point on Chase End Hill, the most southerly of the Malverns. From there we'll return to Whiteleaved Oak then up over Raggedstone Hill to Hollybush and over Midsummer Hill to The Gullet. Then it's up to Swinyard Hill and along the ridge to British Camp.
After tea and rockcakes at the tea stall below British Camp, we'll continue north taking in Black Hill, Pinnacle Hill and Perseverance Hill before dropping down to the Wyche Gap. Then it's up to Beacon Hill (the highest point of the Malverns) and on to North Hill and End Hill.
We can then use the cars at the quarry to shuttle back to the cars at Hollybush.
As far as I can tell from online mapping tools that's just over eight miles with about 2,400 feet of ascent / descent.
The Marlbank Inn campsite is right beside the pub carpark and a busy road; I know nothing about the Three Counties Park campsite; and Blackmore is a Camping & Caravanning Club site so it's a bit poricey for non-members (reasonable for members though).
If people are staying overnight, perhaps we should organise a walk for Saturday?