buy an old used steel mountain bike with a lightweight frame and 26" wheels
add drop bars, barcon shifters, 2 inch wide slick tyres such as Schwalbe Marathon Supreme
and mudguards, racks and a dynamo hub with lights
you will have a good bike with relaxed geometry which is good for touring and that costs very little
BTW, a Surly LHT is basically a steel mountain bike frame, with drop bars and an expensive name badge
get something like this: