Crankcase breather hose

[BriceW at webtv.net]

I will be getting a new crankcase breather hose in a week.
This part has been on backorder.
Should I get a new flame arrestor or just use the old one?
Also, are there any parts I should replace while I am doing the job or
any things to look for that might need replaced?
I considered doing a splice repair with some RTV silicone sealant and a
few standard size hoses as the only bad rotted part is where the hose
goes onto the crankcase and there does not seem to be any pressure on
this hose. Has anyone done this?