[PSUBS-MAILIST] Hydraulic Ram Advice?

[James Frankland via Personal_Submersibles]

Hi All,

Im making some modifications to my trailer.  i wondered if anyone could
give me some advice re: hydraulic rams.  What im trying to do is get 2 rams
that will lift the front of the trailer so the sub can be winched
down ramps onto the floor.  Ive made wheels that will replace the skids.
Pics to follow, not quite finished yet.

However, i know very little about hydraulic rams.  I dont know whether i
should be looking for rams with a pump?  There seems to be loads of rams on
ebay but very few with the pump, and i havent a clue what i need in that
respect.  This one looks ok?

http://www.ebay.co.uk/itm/Iskra-Hydraulic-Pump-3-Rams-Hoses-Atos-Cetop-Valves-and-Gauges-/161340505068?pt=LH_DefaultDomain_3&hash=item2590a4bbec#ht_557wt_977

Or this one is a manual one, which would probably be ok?

http://www.ebay.co.uk/itm/Hydraulic-ram-and-2-stage-hand-pump-Suit-log-splitter-or-engine-hoist-/251567274389?pt=LH_DefaultDomain_3&hash=item3a9293f995#ht_82wt_977

Or should i be looking for something else?  Bottle jacks?  or rams that
trucks use to stabalise them?

Any advice gratefully recieved.  I suppose we best take this off list as
its not really sub related.
Many thanks
James
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