What kind of movements do you need?
If not much, I suggest a Kodak No. 2/2D , or something similar. They are relatively cheap, but well made and not too heavy. They have front vertical shift, and rear tilt of about 15 degrees or so. With those two things combined, you can get the same net effect as a front standard tilt, if you need it. If you do need front tilts it in the field, it is probably an extremely rare case in which you will need more than a few degrees of it, so you are well covered. The restrictions come when you need swings or horizontal shifts. In those cases, you need to put the camera on its side. Luckily they are not heavy, so it can be done, but it is rather hairy the first time, and, of course not as stable. If it is something you think you need to do a lot, I would make an L bracket to do it, not just tilt the tripod head like I do with my No. 2 5x7.