dpmiller

could a 5-foot-nothing lady see and reach said isolators? Wheelchair user?

you can generally calibrate cheapo dial thermometers easily enough to match them at your chosen temp. On some the dial can be rotated, you can pull the bezel, pull the needle and reposition on others, or you might even be lucky and find a wee setting screw...

hung from a ceiling- are you doing cooling and have you got a condensate drain?

does your system control on flow or return temp tho?

... a wee bit more than £60, that.

are concrete chimney tops not a thing where you are? https://www.carryduffbuildingsupplies.com/small-chimney-coping-27-x-60-686mmx1524mm.html

I'd do without a few beers, get the £60 wonder and just set it on top of your table saw...

Kineticos are great.

is the structure up/ can you build in block off the existing floor? That might rule out some options...

^ or even better a waterless trap

50mm increments, plus a 270mm. It's all in the Blum catalogue if you look?

there's a choice of standard sizes

I'd pull the table out 6" or so, the wall is going to take a battering otherwise

fan motor breaking down when it's hot?

or get on the tools yerself.