Could you tell me a few makes & models ranging up to £250?
You don't seem to have grasped the concept yet. Few proper Lo-Pro frames have been made since the early 1990s, and the first ones were from the early 1980s. As a result, you need to seek out something second hand. There are quite a lot around, from the usual Italian brands and many of the UK custom frame builders who operated during the relevant era.
Try to find one with a 26"/650c front wheel, as there are more rim and tyre options in that size, although the 24" size is also available in practical daily-driver tyres and may be better if you're not tall - I'm 6'1" and my Rourke with a 26" front has a 90mm (i.e. very short) head tube.
You don't seem to have grasped the concept yet. Few proper Lo-Pro frames have been made since the early 1990s, and the first ones were from the early 1980s. As a result, you need to seek out something second hand. There are quite a lot around, from the usual Italian brands and many of the UK custom frame builders who operated during the relevant era.
Try to find one with a 26"/650c front wheel, as there are more rim and tyre options in that size, although the 24" size is also available in practical daily-driver tyres and may be better if you're not tall - I'm 6'1" and my Rourke with a 26" front has a 90mm (i.e. very short) head tube.