£150m net can be done quite easily. In the event however, I think it'll be more likely that it'll be in the £65m-£70m net range:
Ins:
Sancho - £83m
Pau - £50m
Trippier - £20m
(Rice - £60m + Lingard)
Total: £213m (£153m without Rice)
Outs:
Dalot - £10m
Pereira - £5m
Bailly - £30m
Lingard - £25m
DDG - £15m
Total: £85m
I don't see Rice happening, but if it did, it would be £128m, net spent. Without Rice, that net spend figure goes down to £68m. Which I think is more realistic, though it depends on if we get as many outgoings as that, as I don't see many clubs being that flush with cash these days.