I've been through similar searches recently, and ended up with the Sovereign Brush Cutter from Homebase. Bought it on their recent 10% day for less than £90. Assembly instructions, whilst in English, could be better, and I've now added 2 washers (4mm total thickness) under the main (brush cutter blade) nut so that the split pin is doing something useful in the safety department. (No, there weren't any items left over after assembly.) It has a straight shaft, "bicycle handlebar" control, bevel gear at the business end, and comes with both brush cutter blade, and strimmer head. It's my first two stroke garden tool, so I'm unqualified to say how easy it is to start, but start it does, and biggest initial problem was measuring
5ml oil for the 1:40 oil:petrol mix for my 205ml trial fill. (Small 5ml syringe to the rescue.)