V8Druid
do it as well as you can,but learn to do it better
yep 15-20Kva would run most stuff ....... if you're buying, .. buy 3 ph ... and open up the world of new toys shopping and possibly cheaper than just a single phase setOne thing to watch out for is 3000rpm vs 1500rpm sets - I think most petrol ones are 3k hence the noise, when you start getting into the 10kva+ diesels make sure it's a 1.5k set - they're quieter and run better IMHO. Sweet spot for a house and towable would be around the 15-20KVA mark.
tow-able is good from the mobility angle .. but also easier to lose .... and you're paying extra for the facility - significantly so in some cases.
May be cheaper to just have a trailer, capable and be able to use that for other things too