We’re just finishing a 96 day trip in our T6 in Europe and it’s all doable. Admittedly ours in a lwb but we carry an inflatable kayak, paddles, belly boards, masks and snorkels, bike helmets, wetsuits, Cadac bbq, two camping Gaz 907 cylinders, cold weather clothes (we started in April) and warm weather clothes, walking boots, trainers, flip flops, sandals, tool kit, bottle jack and standard jack, tow rope, beach mats, outside table and chairs, sun umbrella, two 5cm thick mattress toppers (both for the missus who’s a princess and the pea person), porta potti, hozelock pump shower, shower tent, ramps, windbreak, solar shower, electric bike charger, two folding buckets and then there’s all the usual, pots, plates, jug, cafetière, chopping board, glasses and so on. Only the bikes are outside in the rack. The rest all fits inside and is accessible from inside the van.
You do have to move stuff to get to stuff sometimes but I just look at it as a small price to pay to be able to enjoy amazing places.
You’ll get used to the smaller space and try and find stuff which might have multiple uses. We carry sarongs, handy to cover the seats, use on the beach to change under, lie on the sand, dry off on the beach, hang from the awning to give some shade and privacy etc.