In search of advice please as I'm clueless when it comes to music but my eldest has outgrown his half size cello and is in need of 3/4 and I'm wondering what's best to buy and what sort of prices are reasonable. His teacher can source a second hand Stentor top level (?conservatoire?) for £675. Is that reasonable? He's grade 4 so would a cheaper one be okay? He's also growing fast so not sure how long he'll need a 3/4 for!
Thank in advance