As above, we have the one DC-8 (9G-MKK) that operates usually NLA/LUN/EBB sort of area's.. As for 744, ive no idea, we only have the single DC-8 and 747-200's.. Im from a very military background, so not too wise on the other 74's and compatibility etc etc..
To all that PM'd me, hopefully the info above can help, as for pay, ive never really asked, but im sure its not the worst paid job around...