£33 sounds about right, is that with VAT?
You might get a PDSA/RSPCA/Blue cross deal, as they are ex-feral? (Roxy, where are you, bet you know!)
Our vet does voucher for money off if microchipped & vaccinated, or might be neutering & chipping (they dont always do the chip & jab on the same visit)
He must have tamed up, to let you feel that closely
the vet would do them I imagine at that size. (not to say I'm any kind of an expert in cats testicles, but we have had 5 boys & 2 girls over the years!)
Phone them, don't pay a consult fee just to establish if Toby's "big" enough!
If mum is healthy to you, has ok teeth etc then Im more inclined to say save your money on consultations & get her flea & wormer regularly instead... as that soon adds up!
We ensure all ours have had the first series of jabs, then don't bother so much with the boosters. We have 4 cats at the moment, the old chap lived to be 16 so I don't think it does any harm!!