Two rates which one will save more money over a two year fix term

Borrowing £105k over 23 years two year fix term

1 - First direct 3.19% product fee of £499, £149 valuation fee and £400-£600 solicitor fee
2 - Halifax 3.84% no fee, no valuation or solicitor fees

I worked out that over the two years one can be sav by going for the 1stdirect deal.

Anyone clever enough to do the calculations for me - showing exactly where the savings will be made?

Thanks in advance