The best fencing contractor bar none are the Farm Relief Service. They are quick, efficent but they tend to be very busy so their lead in time could be in the region of approx 4 weeks. Most importantly they are not very expensive, a Timber Post & Wire fence, 4 foot high, supplied & fitted would cost approx €20 - €25 per meter length + vat. Alternatively you could head down to the local hardware store, get a few rolls of wire fencing (comes in 20m rolls), a few stakes, box of staples, straining wire, strainers, hammer, slegde, a few enthusiastic helpers & bobs your uncle, the whole lot fitted in 1 Day for around €1,300.
Now for the block wall option, this WILL be the most expensive option as since builders are such greedy bastards they will charge you through the nose because the job is just too small to make any decent bit of profit. I reckon that you would get a your 88m wall, built with block on edge, approx 1.50m high for between €12,000 - €15,000 + vat, excluding plastering & painting. But if you want to do the blockwall route the most efficent option would probably get a few blocklayers or handy tradesmen to do it as a nixer over a few saturday's which should work out a bit cheaper, the only catch with this option would be in relation to insurance issues in so far they probably would not have public, product or employers liability so if they had any accident, then you would be held liable.
