I would like a quote for the above piece of work. The garden is 10 x 4.6 m. The existing patio below is 4.5x3m. It’s been spot laid and the flags are loose but the flags are in decent condition and can be reused.

I would like the existing patio relaid on a full bed 3.3m x 4.2 m2, approx 13.5m2. This would allow 40 cm for joints and borders. I envisage a border around the outside of approx 10-15cm which I would finish myself once decided what kind of aggregate/ chipping to fill the gaps. There are around 60 flags in total, 600x600mm, 600x300 and 300x300.

The next part is to the patio the waste ground at the rear (currently wood chipped as it is a now defunct play area) which will be 4.2 wide x 3.6, and lay slabs down the sides leaving a small(er) piece of lawn in the middle as per the diagram. This is approx 18.5m2. Apologies for doing some of your jobs and planning the design, but I need to know how many slabs I need. Any suggestions gratefully received.
Many thanks