Hey-Hey!!!, I have gotten good results from motor-run caps. I have ASC 1 uF/440VAC ( 900VDC ), and my slight preference is Siemens MKV 1.5 uF 660VAC ( 1k3 VDC?). Probably more the size( capacitance ), than maker.
I'll offer you a pair of the 1.5 uF MKV on something like long-term loan. They're pretty much bomb-proof. cheers, Douglas