The phasor is a tight fit,but I think any genset in the 3.5kw range would be tight. I bolted 2-2x1/4" Al angle iron the my struts and then made a base with some more Al angle irons that the genny bolts to. Then I bolted that base to the Al on the struts, this way when I have to remove it, I undo the bolts on the Al on the struts instead of the struts themselves. I'll try to get some pictures as soon as I can but I am pretty busy right now with Gustav being down on us.