I'd agree with Gill, that consultation plus meds seems pretty reasonable to me. You're not just paying for the medication, your paying to see the vet for diagnosis.
Vaccinations come first, you need two trips to the vet for this but generally you only pay once (IIRC), I think costs are much of a muchness, about £60 all in? But again, it's been a while since I did the full programme of vaccs.
Neutering is at 6 months, sometimes a little earlier depending on vet and weight of puss. Again, I think it's around the £60-70 but it's nearly 4 years since I had Chilli done so I could be wrong! Microchipping on top is £25 but worth every single penny, Chilli went missing a couple of years ago and if not for her chip I would never have seen her again.
Easiest thing for you to do is ring round a few local vets and just ask them, bearing in mind it's as much about quality of care as it is cost.