Replacement canister for Avon 4 man liferaft

[Twister_Ken]

The canister seems to have UV degraded and has significant cracks in places. Any idea where a replacement could be found that won't cost an arm & a leg (which they seem to do from service agents)?

 

[sailorman]

i bought a zodiac from a forumite in a valise, it was repacked into a s/h canister for under £100. Suffolk Sailing Ipswich