** Travis Perkins TPK.L rises as much as 3.6% to 548p; top gainer on FTSE midcap .FTMC index
** Building materials supplier reports 3.7% like-for-like revenue growth at toolstation division in Q1; total group rev falls 2.4%
** Peel Hunt calls firm "an excellent turnaround candidate" as margins improve with maturing store network
** Reiterates "buy", PT of 750p
** Expects co's merchanting division to go back to earlier profitability levels
** YTD, TPK loses ~27.5%
(Reporting by Judes Joseph in Bengaluru)
((judes.joseph@thomsonreuters.com;))