On 5 Aug, 13:05, RubberBiker wrote:

You know how fit you are, whether you can lift the machine around etc
(30Kg-ish). If you have respiratory problems or significant back
problems, you might want to give it a miss.

I did a two-room job once when I had serious RSI (couldn't write with
either arm). That was very far from being fun 8-( (friends, I'd
promised it to them long in advance)

Fourty quid (yes, really) on some _good_ antivibration gloves is worth
it (try Arco, Screwfix's are crap).

Otherwise search this newsgroup, the topic is a regular.