Does that 50cl have eq or not? Is your deliverance 60 or 120W?
Anyway, 50CL doesn't fully compare to UL. First of all, whole different powertubes. 50cl has EL34 (or 6l6 ect.) and UL has kt88, bit different preamp sections for what I have understood, UL has 3 channels ect. So they are different. But 50CL is not bad, it's versitale comparing to other amps and in it's specific area it excels very well. In my opinion, in übermetalsounds it's not quite there, but definetely close those too.
When comparing 50CL to deliverance, well, some like daughter, some mother. With these amps, for example you have same major difference in powersection (el34vs.kt88). But thinkin tradewisely; they seem to go approximately same price, but I would prefer 50cl anyway. Specially if 50CL has eq+reverb, it's really not so bad deal at all for my opinion. Of course, you've to consider condition of 50cl, how old tubes ect. vs. your deliverance's condition.
Hopefully this helps.
eDIT: oh, it took me ages of writing this post (thanks to my lovely daughter), danyeo and Phrygian got way ahead of me..