Have you tried asking breed rescue for help? They will be able to vet any potential new owners and he's unlikely to have to spend any time in kennels. Have pasted a list of numbers below. Alternatively you could post on \link{http://www.dogpages.org.uk/forums/index.php?showforum=27\Dogpages} in their private homings section.
Beagle Rescue
Mr & Mrs A Young, Alcester, Warwickshire. Tel: 01789 764888
Beagle Welfare Scheme
Sue Molineux, National Secretary Tel: 01902 761951
Di Deakin, Bristol/South West Tel:01275 873305
Jan Hughes, Bucks/Northants/Oxford Tel: 01295 768163
Roger & Maureen Henningson-Dundas, Essex, Tel: 01621 740381
Helen Rogers, Kent/S.London, Tel: 01474 872302
Alan & Elaine Hill, Leicestershire Tel: 01530 814014
Doug & Wendy Hall, Lincolnshire, Tel: 01406 540419
Sue Fielding, Norfolk, Tel: 01842 861762
Patience Walden, Southern England,Tel: 01420 588532
Margaret Dix, Suffolk, Tel: 01379 890153
Mike & Jackie Williamson, South Wales, Tel: 01348 831862
Angela Ismond & Tim James, Wiltshire, Tel: 01264 791928