I have a set of BSA Scopemaster 601 mounts which are fully adjustable and well made (probably rebranded B Square mounts) and they only cost about £31.80 off the bay. These would be my choice in your situation if they are not too low.
I'm not sure they would be high enough and the cheapest I saw was £47.
I've got with the sportsmatch from Ramsbottoms.
Good deals with:
Dunn220, Leon, Bullcelt, stink£r, u.k.neil, supersharpshoot, william and airgun god, GEORGEY, telgun, Simon P and stubbs4612, Wellhouse0, harpo