Hi, I would agree with the advice above, I'd suggest an industrial Massey, such as the one in this link, about on your budget, has the legendary 3 cylinder Perkins as used in the 35/135, but being industrial is stronger and more capable of front loader work. The one I've linked benefits from a 3 point linkage, pick up hitch and appears to be a manual clutch rather than an electric shuttle box, which is probably a better t hing from a reliability point of view. You will still want weight on the back for heavy front loader work, thus can be achieved easily with wheel weights or a concrete weight, or filling rear tyres with water etc.
This has been sold once at £3100, but didn't reach its reserve...but that's what it's worth..is now on again.
http://www.ebay.co.uk/itm/302124094860?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AITA Massey 165 is also a good option , slightly bigger than 135, so better for loader work, quite a few around at your budget, with loaders on. I'd advise...you do not want multi power...it is something else to go wrong and is bad news on hills. You want a model with power steering...though it can be retro fitted. 265 and 565 are equivalent newer versions which are also available and are simple and reliable, with cheap and easy parts availability.